Vasque - Catalyst Mid (Brown/Olive/Grey) - Men's: Take the same performace-oriented features found in the low-top Catalyst and add the protection and stability of enhanced uppers - just the combination for people who want increased support, or those seeking lasting comfort over long distances. 1.6mm Water Resistant Split & Nubuck Leather plus Airmesh Nylon Fabric upper for outstanding comfort and durability. EVA-lution Triple Density Phylon midsole. Revolution w/ Stealth S1 Rubber outsole technology for maximum shock absorption and traction in varying terrains. Nylon lining for additional comfort and support. Contoured EVA footbed. Gusseted Tongue. TecTuff Rand. Running Last. Padded Collar for extra comfort. Shoe weighs 2lbs 3oz.