Replacement Wrist Band for UP MOVE by Jawbone Activity Flexible and comfortable to wear day and night, and with it's adjustable clasp you can size it to fit any wrist. UP MOVE by Jawbone Onyx Thick Strap Optimal for tracking total sleep, light sleep and sound sleep with your UP MOVE Wristband ergonomic, durable, moderate softness, very comfortable to wear, the size of the individual under the circumstances to adjust the wrist Activity tracker and clips not included