Asics - Outback XC (Silver/Calypso) - Men's: A versatile spike with superior cushioning and support for cross and track. Includes 9mm spikes and wrench. Compression Molded EVA Midsole provides enhanced cushioning and protection. Trusstic System provides added midfoot support on all surfaces. Solid Rubber Outsole provides increased durability and traction. Shoe weighs 7.8 oz. (with pins)