The Pocket Innovation Story: How Fusion Changed the Way Triathletes Carry Nutrition
If you've been shopping for a triathlon suit recently, you've probably noticed that pockets — thigh pockets for nutrition access, internal stomach pockets for aerodynamic storage — have become standard features across the market.
What most athletes don't know is where those features actually came from, and the story behind their development is worth telling.
Thigh Pockets
Fusion, the Danish triathlon brand founded in Aalborg in 1999, pioneered the thigh pocket in triathlon suits. Long before it became widely adopted, Fusion identified a genuine problem that every long-course triathlete faces: how do you access nutrition quickly without disrupting your rhythm across a 180km bike leg and a marathon run?
Their answer was functional thigh pockets — positioned specifically for low-drag access, designed around real race conditions, and tested by elite athletes. It wasn't a marketing feature. It was a solution to a real problem, developed through years of working closely with professional triathletes and refining products in their own European manufacturing facility and test lab.
Internal Stomach Pockets
The innovation didn't stop there. Fusion developed internal stomach pockets in collaboration with Patrick Lange — at the time one of the most dominant long-course triathletes on the planet, winning back-to-back Ironman World Championships in 2017 and 2018 wearing Fusion. The concept was technically demanding: position nutrition storage inside the stomach panel so it remains completely aerodynamic without creating drag or movement disruption during the run.
Lange's input was critical. As an athlete whose race strategy depends on precise nutrition intake across the bike — and who runs a 2:39 marathon off the back of it — carrying and accessing nutrition without compromising aerodynamics wasn't a nice-to-have. It was a performance requirement. The result was a feature born from genuine collaboration with a world champion, solving a real problem at the elite level.
Proven at the Highest Level
The proof of Fusion's approach is on the race course. Four Ironman World Championship titles have been won by athletes racing in Fusion — Patrick Lange's back-to-back victories in 2017 and 2018, Sam Laidlow's 2023 win in Nice, and most recently Kasper Stornes' 2025 triumph in the Fusion Pro Suit.
That's four world champions, across eight years of the sport's most prestigious race, all choosing Fusion.
Current Fusion athletes Magnus Ditlev and Sam Laidlow remain two of the most dominant long-course triathletes competing today, continuing to push the boundaries of what's possible in the sport.
That's not coincidence. When the world's fastest athletes choose their kit, performance is the only consideration — and they keep choosing Fusion.
Why It Matters
Genuine innovation in triathlon apparel is hard. It requires serious investment — Fusion run their own wind tunnel and test lab, manufacture entirely within Europe, and work directly with elite athletes to develop solutions that don't yet exist. That process is why Fusion have been at the leading edge of triathlon apparel for over 25 years.
The features that feel standard today were anything but when Fusion first developed them.
At sports.com.au we stock Fusion because we believe in backing the brands that are genuinely moving the sport forward. Explore the full Fusion range here.