Night Swim HydroKnit Bicep Band

Our fastest-drying HydroKnit material is now available in a bicep band. HydroKnit 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. The Bicep Band frees your wrist and allows you to capture data on your upper arm. 

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