Sidi's Genius Fit Carbon Shoes for men are a staple for many riders. With replaceable buckles and heel pads, they are sure to outlast your latest kit. The uppers of the Fit are Technomicro material, which is water repellent, mildew resistant, and breathable to keep your feet dry inside and out. Additionally, Technomicro keeps your feet well supported by resisting stretching. This also means that you won't need to continuously tighten the buckle to keep your shoes on your feet. Speaking of buckles, Sidi uses its micro adjustable ratchet to secure the uppers. The buckle is sewn to a wide Soft Arch Compression Strap that helps to spread pressure from pedaling across the top of your foot. This oversized strap reduces the need to over tighten the buckle, which, in turn, means better blood circulation. Two additional hook and loop straps on the forefoot complete the closure. A Millenium 4 Carbon Composite sole finishes off the Genius Fit. This sole, which is a nylon matrix that is imbued with carbon fiber, is stiff, lightweight and won't break the bank like full carbon soles. It is durable and sure to outlast a set of buckles and even a heel pad or two.