Louis Garneau Women's Cristal Bike Shoes Synthetic-Mesh Every element of Cristal shoes has been chosen for optimum performance, with the reinforced nylon outsole providing toughness without extra weight and the synthetic leather and mesh upper construction delivering comfort, support, and breathability. STREAMLINED: The innovative thermobonding technique makes the upper totally seamless, which improves aerodynamics and eliminates painful pressure points, so you'll have no distractions when you're climbing hard or chasing down a break. VERSATILE: The hook and loop fastener straps provide superb heel support while the adjustable ratchet provides a secure fit and effective support for a variety of pedaling styles. BREATHABLE: Experience the best of summer cycling without fear of overheating, thanks to Cool Stuff insoles and our patented multi-vent system on the outsole. DETAILS: The Cristal shoes weigh 285 g. The steel cleats fit all major road and SPD pedals.