Shawn Crawford's shoe in the 2004 Olympic Games. The Nike Monster Fly is designed for the elite level 100 meter sprinter looking for a sprint spike with the latest in innovative technology that supports the foot and enhances performance like no other spike. Lean and light synthetic one-piece vamp creates perfect forefoot lock down for power transfer. Forefoot support band integrated into the upper for adjustable fit and stability over the spike plate. Open mesh panel creates breathability and reduces weight. Phylon™ wedge midsole. Full-length nylon plate provides support. Aggressive seven permanent compression pins add traction in a lightweight package. Two-column Nike Shox™ support piece under the heel supports the foot and provides correct sprinting form and foot position. Wt. 7.8 oz.