The Vest Exoskeleton (VEX) is an arm-assisting robot vest that makes longer overhead activities easier and safer. It creates a friendly impression with its curved forms and soft feel. VEX can be adjusted to body size, fits comfortably and allows natural arm movements with a full range of motion. The completely mechanically working vest uses a polycentric axis that combines multiple pivot points with multi-link upper arm support, which gives the user relief when working with heavy weights.