01 / OUR STORY

IT DIDN'T START IN A BOARDROOM.
IT STARTED AT A FINISH LINE.

Triathlete wearing swimming goggles
Triathlete riding a bicycle
Triathletes training together

BACK IN 2004, A SMALL GROUP OF TRIATHLETES GOT TIRED OF RACING IN GEAR BUILT FOR OTHER SPORTS AND RECYCLED FOR TRIATHLON. SUITS THAT BUNCHED AT THE SHOULDER DURING THE SWIM. SHORTS THAT CHAFED BY MILE 40 OF THE BIKE. COMPRESSION SOCKS THAT PROMISED RECOVERY AND DELIVERED NOTHING.

SO THEY BUILT THEIR OWN - TESTED IT IN THEIR OWN TRAINING AND THEIR OWN RACES, AND KEPT REFINING IT UNTIL IT DIDN'T JUST MEET EXPECTATIONS IT EXCEEDED THEM. SLS3 WAS BORN.

Owner · Triathlete · Dad of Two

Jim Cissel

Jim is SLS3's owner and resident triathlete. As a 10x Ironman finisher and Kona qualifier he has earned his place among the sport's best. That elite performance mindset shows up in everything he does, obsessed with the details...from finding the perfect chamois pad, to tweaking aero fabric placement, to optimising suit breathability. Every detail matters when you're racing for seconds. His entrepreneurial, go-getter attitude runs through the business too: if something isn't working, iterate. If something is flying, aim higher.

02 / The People

Still run by the people who race in it.

The people developing, testing and running SLS3 train and race so the feedback loop between "this doesn't work" and "we fixed it" stays short.

CEO · Triathlete · Mom of Two

Pippa Peckham-Cooper

As SLS3's CEO, Pippa brings a unique combination of 15+ years in the fashion industry, paired with even longer racing triathlons herself. As a mum of two, she also knows there's no time to waste worrying about whether your gear will hold up when it matters most. That understanding shapes everything SLS3 does. For Pippa, high performance isn't a slogan, it's the standard the team holds itself to in every stitch, every fabric choice, and every interaction with the athletes, who trust SLS3 to show up on race day. Pippa builds SLS3 as she were the one racing in it... because she is.

03 / The Philosophy

Built for every triathlete.

Different races, different bodies, different goals, all require something unique from a suit. At SLS3 we cater for all scenarios.

01

Elite

Built for racers chasing every second. Aero-mapped, race-day storage, full-zip construction — the suits engineered for the athletes who count seconds.

02

Pro

Performance and value, balanced. For athletes training seriously without the budget of the podium chasers — full race spec, sharper price.

03

AG

For newer triathletes. Gear that actually performs, at a price that makes sense for where you are in the sport — no compromises on race day.

Our goal is to help you achieve yours. To perform your best, push your limits, and cross the finish line knowing you gave everything you had. That's what well-made, race-tested gear is for, wherever you're racing.

04 / GLOBAL

American roots. Every time zone.

SLS3 is based in the United States, but you can also pick up some of your favourite gear in Canada, the UK, Europe and Australia.

Triathletes training in Boulder, Berlin or Bangkok all face the same challenges, and the same demand for gear that won't let them down.

05 / STILL AT IT

Just a group of triathletes making gear for other triathletes.

Come race with us.