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In partnership with the world-leader in swimming innovation
Calling the Butter Gang — the latest and greatest band from the Buttery Bros is here
Breathable
1 SportFlex Band
so you can seamlessly layer it under your clothes without missing a moment of data
5.0 SportFlex Band | Fire buttery In partnership with the world-leaderSportFlex is a high performance band made from durable and soft touch silicone. Its waterproof, dirtproof, sweatproof, and stainproof, with an adjustable closure system and ventilation details. No matter the sport, water activity, or competition, SportFlex is ready. On your toughest days, SportFlex is the band you need. WHOOP device and membership not included. Visit join. whoop. com and sign up for a membership today!