CloudTec® elements for cushioned landings Soft cotton-mix upper and terry tongue Speedboard® for easy forward motion Speed-lacing system for easy on Perforated heel for added aeration The super plush terry tongue fabric is this shoe's standout feature. Part cotton, part technical material; it comes together with a soft cotton-mix upper to create a snug, ultra-comfy fit. Wrapped in vegan leather on the sides for a smooth, clean look. It's made for all-day wear.