The Exustar E-ST951 is a high-end triathlon shoe engineered for maximum performance. It features a contoured, supple PU leather upper, with extra breathable mesh, dual direction strap with stopper, large heel loops and a tongueless design for easy entry and quick change. The nylon-fiberglass composite sole has extra built-in air control vents to help keep you cool, and non-slip walk pads are ready when your feet touch the ground. PU leather upper, with heel shell, breathable mesh, tongueless design, heel loop, reflective swatch Large Velcro strap closure with strap stopper, dual direction strap Nylon-fiberglass composite sole with air control vents and TPU walk pad Washable insole with perforated EVA Only 568 grams per pair; compatible with Look, SPD, and SPD-SL systems; sizes 38-48 available