When it comes to any performance or profession, nothing should stand in the way of unlocking your potential. It’s why we designed our premium SuperKnit Bicep Band that frees your wrist and allows you to capture data on your upper arm. Engineered with an ultra-soft backing and microfilament yarn for enhanced comfort and durability—so you can stay in the zone with zero distractions. IncludesBand, Hook, Clasp, and Fast Link™ sliderthat makes swapping bands easier than ever. Only compatible with WHOOP® 4.0. WHOOP device and membership not included. Stock photos show style only, not color. Gently used condition. Please review photos carefully and ask any questions. Smoke-free home. Bundle & save!