New In
21 products
Delicious, Chewable, Electrolyte Tablets
SaltStick FastChews revolutionise hydration with a faster, more convenient way to replenish electrolytes. The innovative, chewable tablets are clinically proven to start working within minutes – no mixing and no waiting. Just chew. Enjoy 15 mg of caffeine for an added boost!
SUGGESTED USE: Chew 2 tablets for every 30 minutes of exercise. For maximum effect, chew completely before swallowing. Drink water as needed.
- FASTCHEWS Help Reduce Muscle Cramping, Reduce Heat Stress, Boost Stamina, Maintain Electrolyte Levels.
- The ONLY chewable tablet that is formulated to closely resemble the electrolyte profile lost in sweat.
- Each serving (2 tablets) contains: 100 mg sodium, 30 mg potassium, 10 mg calcium, 6 mg magnesium.
- 2 delicious flavours - Tropical Twist and Citrus Burst
- Bio-available active ingredients. Made in USA under cGMP (current Good Manufacturing Practice) and independently tested to be free of banned substances.
- Ingredients are: non-GMO, gluten-free, vegetarian, fat-free. Please check individual labels.
- Natural stevia as sweetener. No colour added.
- Also great for youth sports, travel rehydration, tennis and other sports, camping & hiking, effects of alcohol.
*Packaging may vary
*Citrus Burst ingredients include Grapefruit
Hydration made simple 💧⚡
No mixing. No waiting. Just chew.
Fuel your body with fast-acting electrolytes wherever you go — workouts, runs, hikes, or busy days. 🏃
Stay energised. Stay hydrated. Stay ready.
Try SaltStick FastChews today 🍋🍊
1x Lemon & Lime 10ct Packet
1x Tart Orange 10ct Packet
1x Mixed berry 10ct Packet
Blended merino-polyester top designed for round-the-clock comfort
Experience the ultimate fusion of functionality and comfort with our Mens Technical Merino 150 Short Sleeve. Crafted meticulously in Denmark by Herning Fabrics, this top combines 23% mulesing-free merino wool on the exterior with 77% polyester inside, ensuring the perfect balance of temperature regulation and durability. Enjoy the natural moisture management and self-cleaning properties of merino wool paired with the quick-drying and resilient characteristics of polyester.
This hybrid fabric guarantees shape retention and improved abrasion resistance, making it ideal for multifunctional use. Whether you`re navigating the outdoors or relaxing at home, our shirt provides 24/7 comfort and is machine washable for easy care.
Also available in Long Sleeve Version.
Details and Materials
23% mulesing-free merino wool (exterior) and 77% polyester (inside)
Suitable for all-day wear, from active workouts to casual outings
Proudly crafted in Denmark
Made in Fusion`s own factory in the EU, Stocked in the UK
Machine washable
Available in Black, Night Blue, Rust, Sand and Long sleeve T-Shirt version
Blended merino-polyester top designed for round-the-clock comfort
Experience the ultimate fusion of functionality and comfort with our Mens Technical Merino 150 Long Sleeve. Crafted meticulously in Denmark by Herning Fabrics, this top combines 23% mulesing-free merino wool on the exterior with 77% polyester inside, ensuring the perfect balance of temperature regulation and durability. Enjoy the natural moisture management and self-cleaning properties of merino wool paired with the quick-drying and resilient characteristics of polyester.
This hybrid fabric guarantees shape retention and improved abrasion resistance, making it ideal for multifunctional use. Whether you`re navigating the outdoors or relaxing at home, our shirt provides 24/7 comfort and is machine washable for easy care.
Also available in Short Sleeve Version.
Details and Materials
23% mulesing-free merino wool (exterior) and 77% polyester (inside)
Suitable for all-day wear, from active workouts to casual outings
Proudly crafted in Denmark
Made in Fusion`s own factory in the EU, Stocked in the UK
Machine washable
Available in Black, Night Blue, Rust, Sand and short sleeve T-Shirt version
Ultralight race sock with maximum ventilation
TEMPO! Pro Run Sock is developed specifically for race days and training in hot weather, where heat dissipation is the top priority. The sock is engineered for minimal weight and maximum airflow, allowing your feet to release heat as intensity rises.
The upper is woven with an open mesh panel that ensures effective ventilation, while the bottom remains completely streamlined. This provides a more direct contact with your race shoe and a better feel for the ground. The ultrathin fit acts almost like a second skin, following the foot`s movements without creating friction. At the same time, it allows space for the feet to naturally expand in the heat. A detail that can make a real difference over long distances like a marathon or Ironman.
Details and materials
Ultralight (Minimalist construction)
Open mesh upper for maximum airflow
No cushioning (Direct contact with the shoe)
Tight Race-fit (Allows for natural foot expansion)
Classic race length shaft
Produced in Portugal
STANDARD 100 by OEKO-TEX® certified product (all components tested and approved). FUSION certificate number: 2017OK1267 AITEX
Material: 91% Polyamide, 9% Elastane
Technical, lightweight and ventilated run singlet
Lightweight comfort for training in warm weather
This sleeveless running top is technical, lightweight, and highly ventilated, built for both everyday training and competitive racing. Its performance fabric actively pulls sweat from your skin and dries rapidly, meaning the singlet won’t get weighed down or stick to you during hard efforts. Even in the summer heat, it helps keep you cool and dry.
The cut is a race-oriented athlete fit, which in this case is a medium-to-tight fit that sits close to the body without restricting breathing. By hugging your torso, it prevents excess drag from flapping fabric, yet it’s stretchy enough for complete freedom of movement. Whether you’re doing intervals on the track or lining up at a marathon, this singlet’s minimalistic design lets you focus on performance. It’s recommended for use in warm conditions (15°C to 30°C), perfect for summer runs.
Details and materials
Lightweight, breathable performance fabric
Quick-drying material that efficiently wicks sweat away from the skin
Athletic, race-oriented fit allowing full freedom of movement
Minimal seams to reduce friction and ensure a smooth feel
Optimized for running in warm conditions (15°C to 30°C)
Durable construction for long-lasting performance
Fusion Powerlock: lockstitch seams for added durability
Fabric produced in Italy
Manufactured in FUSION’s own European factory (Lithuania)
STANDARD 100 by OEKO-TEX® certified materials
This product is sewn at our own OEKO-TEX® STeP-certified (cert. 24000253) production facility in Lithuania.
The STeP (Sustainable Textile Production) certification confirms that our sewing facility go beyond EU standards, being assessed against higher criteria for energy use, chemical management, working conditions, and workplace safety.
Material: 100% polyester
All-purpose shorts with pockets
A pair of long shorts in regular fit, suitable for almost anything: running, training, padel tennis - you name it.
Short Pocket feature spacious pockets, making them extra versatile as sports shorts. Lightweight and stretchable, they provide great freedom of movement and high comfort, based on optimal sweat transport and drying ability.
They have an adjustable drawstring waistband for individual fit, and there is a small flag logo on the thigh.
Overall, a pair of thoroughly tested and durable shorts that can be used in many contexts - and for many years to come.
These shorts are a baggy fit so we would advise going down a size if you like a tighter fit.
Details and Materials
Unisex product
Designed for versatility
Stretchable for great mobility
Elastic waistband with integrated drawstring for individual fit
Optimal sweat transport and drying ability
With pockets
Small flag logo on the right thigh
Fusion Powerlock: lockstitch seams
Fabric produced in Italy
Manufactured in Fusion`s own factory in the EU, Stocked in the UK
STANDARD 100 by OEKO-TEX® certified product; this means that all components such as fabrics, threads, transfers, zippers, elastic bands, labels, etc., have been tested and approved according to the standard. FUSION certificate number: 20170K1267 AITEX
Shorts material:
71% polyamide, 29% elastane
These are a slightly baggy all round run, gym short. If you like them tighter, order one size down. If you have previously had C3 Run Shorts or Recharge Shorts, go down a size.
Your Daily Running Sock – Upgraded
TEMPO! TWO Run Sock is made for runs where comfort has to last all the way home. It adds extra cushioning under the foot and reinforcements in the areas that typically wear first.
On longer runs it’s rarely the legs that surprise you — it’s the feet. TEMPO! TWO is a classic running sock with a little more underfoot comfort and extra durability where running socks usually fail first.
We’ve added extra material under the foot for a more comfortable contact with the shoe and to take the edge off the load on longer distances. The toe and heel are reinforced for improved longevity. The fit is tuned to sit close and smooth on the foot, helping prevent bunching and friction.
The leg is mid height and slightly higher than our previous Run Sock, giving a bit more coverage around the ankle.
Made in Portugal as part of our European value chain.
-Versatile running sock for training and racing
-Reinforced wear zones at heel and toe
-Slightly higher leg for improved coverage and protection
Details and materials
Weight: Lightweight with zoned reinforcement
Cushioning: Zoned cushioning under the ball of the foot and heel
Durability: Extra reinforced yarn in heel and toe box
Fit: Anatomical fit reducing the risk of blisters
Production: Knitted in Portugal
Certification: STANDARD 100 by OEKO-TEX® certified product (all components tested and approved). FUSION certificate number: 2017OK1267 AITEX
Material
91% polyamide, 9% elastane
Sweat-wicking running t-shirt for women
Breathable running T-shirt for warm conditions and daily training
While the TEMPO! ONE Run T-Shirt is produced in a newly developed soft and extremely comfortable material. The lightweight and ventilated t-shirt has effective moisture transport and quick drying ability, ensuring that the product does not stick to the skin during activity.
Mechanical stretch without elastic yarn ensures that the t-shirt has a long lifespan and unchanged performance throughout the product`s lifespan.
The fit is loosely fitted and tailored for women
Details and materials
Good sweat transport, quick-drying
Mechanical stretch without elastic yarns
Fusion Powerlock: lock seam on seams
Fabric produced in Italy
Made in Fusion`s own sewing room in the EU, stocked in the UK
STANDARD 100 by OEKO-TEX® certified product; this means that all components such as fabrics, threads, transfers, zippers, elastic bands, labels, etc., have been tested and approved according to the standard. FUSION certificate number: 2017OK1267 AITEX
Material: 100% polyester
Multi-sport sock with grip
TEMPO! ONE Sock is a technical multi-sport sock with grip underfoot. A performance sock with a non-slip sole, designed for a wide range of activities including running, padel, gym training and cycling.
The grip zones underfoot are placed to reduce foot movement inside the shoe when you change pace or direction. In short, TEMPO! ONE Sock is the sock you can use for almost anything. It also works well as a sporty everyday sock, thanks to its close fit, clean design and ability to stay in place.
Details and materials
Strategically placed ventilation zones
Grip underfoot
Mid-height cuff
Made in Portugal
STANDARD 100 by OEKO-TEX® certified product (all components tested and approved). FUSION certificate number: 2017OK1267 AITEX
Material: 91% polyamide, 9% elastane
Sports bra with medium support
Sports Bra is developed for you if you want medium support in a roomier fit. It’s designed to give a bit more space across the bust and suit more body types and cup sizes, without compromising the support and stability you expect from a training sports bra.
It’s built in two layers. The outer fabric provides support, shape and coverage, while the inner mesh keeps it lighter and more comfortable against the skin, giving you a balanced feel. It still sits close and secure, but feels less compact and more comfortable in use.
The classic racerback gives you freedom of movement and a locked-in fit during activity. The fit is deliberately roomier where many need it most, so it feels less tight and more balanced on the body.
A softer elastic underband keeps everything stable without digging in. The result is a sports bra that blends support and comfort for both low and high-impact sports, and everything in between.
Details and materials
Medium support
Roomier fit
Two-layer construction
Supportive outer fabric for shape and coverage
Breathable mesh lining
Softer underband with stable hold
Available in AB and CD cups
Material: Outer (65% polyamide, 35% elastane), Inner (100% polyester)
Fit
This fit sits closer to the body and is designed to follow movement more directly. The fabric works actively with the body, providing a more precise and stable feel during activity.
Choose your normal size for a close fit. If you are between sizes or prefer a bit more room, we recommend going one size up.
Technical, lightweight and ventilated run singlet
Lightweight comfort for training in warm weather
This lightweight and technical running singlet is designed to keep you cool, dry, and focused, whether you’re training or racing. Made from a highly breathable, quick-drying performance fabric, it efficiently wicks sweat away from your skin, ensuring lasting comfort even during high-intensity runs or warm summer conditions.
The feminine, athletic fit follows your natural movement and provides a medium-to-tight profile that feels supportive without restricting motion or airflow. The soft, stretchable fabric eliminates irritation and allows complete freedom of movement. Minimal seams and a clean, functional design make this singlet the perfect choice for runners who value performance and simplicity.
Recommended for: Running in warm conditions (15°C to 30°C).
Details and materials
Lightweight, breathable performance fabric
Quick-drying material that efficiently wicks sweat away from the skin
Feminine, athletic fit providing freedom of movement and all-day comfort
Minimal seams to prevent irritation and ensure a smooth feel
Optimized for running in warm conditions (15°C to 30°C)
Durable construction for repeated use and long-lasting quality
Fusion Powerlock: lockstitch seams for enhanced durability
Fabric produced in Italy
Manufactured in FUSION’s own European factory (Lithuania)
STANDARD 100 by OEKO-TEX® certified materials
This product is sewn at our own OEKO-TEX® STeP-certified (cert. 24000253) production facility in Lithuania.
The STeP (Sustainable Textile Production) certification confirms that our sewing facility go beyond EU standards, being assessed against higher criteria for energy use, chemical management, working conditions, and workplace safety.
Material: 100% polyester
The complete high-performance running shorts for women
A pair of super lightweight running shorts - tight-fitting inner tights and loose-fitting outer shorts - with a high women-specific waist - for fast times and your next PR.
The unique fabric in Womens SLi Shorts is super elastic, giving you maximum mobility. The comfortable inner shorts with optimal sweat transport and drying ability have a little length to avoid thigh wear.
Details and materials
Active sweat-wicking
Extra high waist for specific women`s fit
Super stretchy for maximum mobility
Fusion Powerlock: locked seams on stitching
Fabric produced in France and Italy
Made in Fusion`s own sewing studio in Lithuania
STANDARD 100 by OEKO-TEX® certified product; this means that all components such as fabrics, threads, transfers, zippers, elastic bands, labels, etc., have been tested and approved according to the standard. FUSION certificate number: 2017OK1267 AITEX
This product is sewn at our own OEKO-TEX® STeP-certified (cert. 24000253) production facility in Lithuania.
The STeP (Sustainable Textile Production) certification confirms that our sewing facility go beyond EU standards, being assessed against higher criteria for energy use, chemical management, working conditions, and workplace safety.
Material: Outer shorts: 76% Polyamide, 24% Elastane Inner shorts: 85% Polyamide, 15% Elastane
Engineered for long trail efforts with vest, heat and exposure.
Trail running asks more from a T-shirt than low weight alone. It has to handle heat, sweat, sun exposure and the repeated friction that comes from running with a vest or backpack.
TEMPO! Trail T-shirt is built with two Italian fabrics, each placed where it makes the most sense. The front, back and sleeves use the same technical fabric known from our TEMPO! T-Shirt - chosen for durability, sun protection and its cooler feel when damp. These are the zones most exposed to sun and the areas most likely to meet friction from a running vest.
The side panels use a lighter and more ventilating fabric. They are placed where heat builds up fastest, helping the T-shirt feel more open and breathable during longer efforts.
It is a trail-specific construction with more ventilation where the body needs it, and more durability where the product takes the most wear.
Details and materials
Ventilating side panels
Durable main fabric
Stretch comfort
Technical TEMPO! graphic
Developed for trail running, long efforts and use with vest or backpack
Made at FUSION’s own factory in Lithuania
STANDARD 100 by OEKO-TEX® certified product; this means that all components — fabrics, thread, transfers, elastics, labels and other trims — have been tested and approved according to the standard. FUSION certificate number: 2017OK1267 AITEX.
Material: Main body, sleeves and back: 90% polyester, 10% elastane Side panels: 90% polyester, 10% elastane
Engineered for modern trail running with storage, airflow and unrestricted movement.
Modern trail running asks more from shorts than freedom of movement alone. They need to carry nutrition, secure a phone, handle heat, stay comfortable over distance and still feel light when the terrain changes.
TEMPO! Trail Shorts are built to solve that balance. The outer short is made from a very light French woven fabric — selected for ventilation, durability and a barely-there feel over the inner tights. It gives coverage without adding a heavy layer, so the shorts stay open and unrestricted through climbs, descents and warmer conditions.
Inside, the close-fitting inner tights use the same Italian fabric known from our PRO Run Shorts. The fabric is selected for 4-way stretch, supportive comfort and a stable feel through repeated movement. Two side pockets are integrated into the inner tights, keeping phone, gels or small essentials close to the body and easy to access.
The waistband is constructed with integrated storage for longer runs, with pockets placed in different sizes for nutrition and essentials. A rear waistband pocket is designed with room for a softbottle, giving the shorts more carrying capacity without turning them into a heavy storage product.
A gusset construction improves freedom of movement and reduces unnecessary seams in a high-friction area.
Details and materials
Lightweight 2-in-1 construction
High-waist storage system
Pockets placed around the waistband in different sizes
Rear waistband pocket with room for a softbottle
Two side pockets on inner tights
Gusset construction
Ventilating outer short
Italian 4-way stretch inner tights
Developed for trail running, long efforts and use with or without vest
Made at FUSION’s own factory in Lithuania
STANDARD 100 by OEKO-TEX® certified product; this means that all components — fabrics, thread, transfers, elastics, labels and other trims — have been tested and approved according to the standard. FUSION certificate number: 2017OK1267 AITEX.
Material: Outer shorts: French woven (76% polyamide, 24% elastane) Inner tights: Italian knitted fabric (76% polyamide, 24% elastane) Waist storage: Italian 4-way stretch warp knit (79% polyamide, 21% elastane)
Arm sleeves for running in changing conditions
TEMPO! Run Sleeves are built for runs where full long sleeves feel like too much, but bare arms are not quite enough. They provide a close-fitting layer that helps you adapt to cool air, wind and sun without disturbing the rhythm of the run.
The fit is tight and unrestrictive, allowing the sleeves to stay close to the arms and move naturally throughout the run. This makes them a practical option for race day, tempo sessions and everyday runs in transitional weather, where your need for coverage can change from the first kilometre to the last.
They are easy to take off and stow mid-run, so you can adjust as conditions change.
Details and materials
Medium compression
4-way stretch
Close fit
Easy to remove and stow mid-run
Durable, matte fabric with high coverage
High resistance to pilling and abrasion
UPF 50+ protection
Fabric produced in Italy
Made at FUSION’s own factory in Lithuania
OEKO-TEX® STANDARD 100 certified
Material: 87% polyester, 13% elastane
Durable high-mileage shorts with fixed inner tight and stable storage
TEMPO! ONE Run Shorts are the solution for those who want the storage options of tights but the freedom of shorts. We have combined an ultralight outer short and a supportive, functional inner tight in one product that works equally well for marathons and high-volume training.
The challenge with many 2-in-1 shorts is often that the inner tight is too short or loose. This results in "riding up" during the run, or the shorts starting to sag as soon as you put a phone in the pocket. We solved this by reconstructing the inner tight from scratch.
We have extended the inner short to "True Tights" length. This means it reaches far enough down to grip under the large thigh muscle. This positioning ensures that the tight is fixed on the leg and does not move, no matter how fast or far you run. The material is fine-knitted and powerful, providing a firm, supportive feel – exactly as you know it from our long tights.
The firm structure of the inner tight is crucial for the pockets. Because the fabric is strong and sits close to the thigh, you can carry your phone or gels in the side pockets without them bouncing. Combined with the adjustable drawstring in the waist, this ensures the shorts stay exactly where they should, even when fully loaded. The outer layer is an ultralight shell that provides the airy feel and look many prefer on a run.
Details and materials
-True Tights length (fixed under the thigh muscle)
-4-way stretch
-Quick-drying and moisture-wicking inner tights
-2 x thigh pockets on inner tights (for phone/energy)
-Sewn-on FUSION flag logo
-Elastic waistband with adjustable drawstring (Essential when pockets are full)
-Powerlock lock seams (increased durability)
Fabric from Italy
Produced at our own sewing facility in Lithuania
STANDARD 100 by OEKO-TEX® certified product; this means that all components, including fabric, thread, transfers, zippers, elastic, labels, etc., are tested and approved according to the standard. FUSION certificate number: 2017OK1267 AITEX
Material: Inner (85% PA Micro / 15% EA) Outer (71% PA Micro / 29% EA)
Includes 8x 10ct FastChews Packets:
2x Mixed Berry
1x Tart Orange
1x Coconut Pineapple
1x Pink Lemonade
2x Citrus Burst (+Caffeine)
1x Tropical Twist (+Caffeine)
SaltStick FastChews revolutionize hydration with a faster, more convenient way to replenish electrolytes. These irresistible, chewable electrolyte tablets are clinically proven to start working in 45 seconds – no mixing and no waiting. Just chew. Enjoy 15 mg of caffeine for an added boost!
SUGGESTED USE: Chew 2 tablets for every 30 minutes of exercise. For maximum effect, chew completely before swallowing. Drink water as needed.





























































































































































































































































































































































