Abstract: A high performance cycle seat which provides support of the buttock muscles of a cyclist includes a frame, a shell supported on the frame, and wherein the frame and shell include a raised anatomical rear portion which defines a chock for longitudinally supporting the buttocks of the cyclist when the cyclist is hunched over a cycling position. The rear portion includes a forward-facing median wedge, which has a generally epsilon shape in horizontal cross-section. The latter also includes a pair of sloping curved side portions. The wedge prevents lateral displacement of the buttocks, and its width increases in a direction towards its upper rear edge. A longitudinal median zone is arranged forward of the raised rear portion and is aligned with the wedge.