Pearl Izumi X-Project Pro Cycling-Footwear textile and synthetic Imported Synthetic sole Shaft measures approximately low-top from arch Spring/summer 2017 Zonal bi-directional closure wraps the foot for a semi-custom fit and secure foot retention, double boa ip1 reels allow 1mm micro-adjustability and pop up for full release Co-molded carbon rubber tips on hollow tpu lugs provide impressive traction on an extremely lightweight bottom unit, eva foam heel absorbs impact for off-the-bike comfort 1:1 insole system allows independent left and right arch and forefoot varus canting adjustability for optimal pedaling mechanics Spd compatible