The HydroKnit band is our fastest-drying, most advanced fabrication yet. It dries twice as fast as SuperKnit and retains 30% less water – making it a must-have for water sports, high-sweat activities, or just taking a shower.

Includes Band, Hook, Clasp, and Fast Link™ slider that makes swapping bands easier than ever. Only compatible with WHOOP® 4.0.