The muscle atrophy of astronauts is due to the inactivity of the muscles in zero gravity. When there is no activity muscles deterioate, and when muscles are inactive circulation is decreased. Our "sleeve" incorporates STEM technology with RockTape technology to allow for increased muscle activity and blood flow in space. Our 3d printed control system redirects wires, eliminating much of the clutter and making the device more wearable. This project has the potential to prevent the muscle atrophy experienced by astronauts in space in a straightforward, inexpensive, and wearable way.