4.0 Caddy Superknit BandIntroducing the new Hole in One Bands, just in time for weekends spent on the green (or watching with a pimento cheese sandwich in hand). Unlock your game with the newest SuperKnit bands, available in three golf inspired styles. Pick one up and get your WHOOP ready for your next tee time. Includes Band, Hook, Clasp, and Fast Link slider that makes swapping bands easier than ever. Only compatible with WHOOP 4. 0.