A prosthesis system (10) adapted for being worn by a user (1) comprises at least a first cover (11), a prosthetic limb (12) and an adapter device (13, 14) for fixing the first cover to the prosthetic limb, wherein the adapter device comprises a first adapter part (13) configured for being attached to the first cover, a second adapter part (14) configured for being mounted onto the prosthetic limb and locking means (131, 141) for locking the cover (11) onto the prosthetic limb.
