An input interface configured to be worn on a portion of a user's body includes tendons coupled to various sections of the garment. A tendon includes one or more activation mechanisms that, when activated, prevent or restrict a particular range of motion. The tendon may include a tendon web that controls multiple portions of the user's body with an activation mechanism. The tendon may connect to the garment through a textile mesh that distributes force over a wider area of the user's skin. An activation mechanism may apply force to the textile mesh to modify the stiffness of the textile mesh or to modify the pressure applied by the textile mesh. The tendon may be a wire or have a form with variable width. The activation mechanism may be a solenoid using a permanent magnet, which may have multiple alternating magnetic poles.