The present disclosure includes a biomechanical weight-bearing crutch that may replace conventional crutches in use today. Unlike conventional crutches, the crutch of the present disclosure enables a user to immediately walk in a hands-free fashion. The biomechanical weight-bearing crutch is a form fitting device that can be worn inside or outside of the user's clothes. The movement of the crutch is automatically and synchronously performed as part of the gait motion, instead of today's cumbersome crutch motion where the users have to physically lift and move the crutch.