The latest SportFlex band marks our third year collaborating with Battle Cancer, an organization that helps those getting back into fitness after a cancer diagnosis. It’s made from the same highly durable, soft-touch silicone that makes it waterproof, dirtproof, sweatproof, and stainproof design.

With an adjustable closure system and ventilation details, it’s game for anything—and your purchase will be supporting a cause we love. A portion of proceeds go directly to Battle Cancer.

Includes band, hook, clasp, and Fast Link™ slider that makes swapping bands easier than ever. Only compatible with WHOOP® 4.0.