Ryn Men’s X-Run Athletic Shoe (12.5 D(M) US, Black/Grey Suede)

The sole is constructed of EVA
The upper is constructed of leather mesh
Provide the cushioning you want and the stability you need As the foot strikes 1.heel, 2.mid-foot and 3.toe-off on Ryn's seven layer sandwich structure, its EVA embedded graphite shank see-saws on the Ryn air tunnel, thus recreating the stable natural foot strike environment humans were evolved to follow. As a direct result of this guided motion, Ryn's X-Run footwear: reduces stress on back, hips, knees and ankles; strengthens and tones the c More »