Pearl Izumi - Ride Men's Pro Aero Gloves Back Of Hand: 78% Polyester, 22% Elastane, Palm: 60% Nylon, 40% Polyurethane Imported Spring/summer 2016 1:1 glove fit with back of hand support reduces bunching and provides second skin fit; Wind cheating textured aero fabric on back of hand Clarino synthetic leather palm is soft and durable; Soft low-profile wiping surface on thumb; Simple pull on design