ASICS Men's Gel-Nimbus 18 Nyc Running Shoe 100% Synthetic Imported Rubber sole FLUIDRIDE MIDSOLE - FluidRide provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability. FLUIDFIT UPPER - ASICS FluidFit upper technology combines multi-directional stretch mesh with stretch reinforcements that adapt to the athlete's foot, creating a truly customized glove-like fit. SEAMLESS CONSTRUCTION - The use of seamless materials reduces the potential for irritation and friction caused by traditional stitches and seams. REARFOOT AND FOREFOOT GEL CUSHIONING SYSTEMS - Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle. COMFORDRY X-40 SOCKLINER - This premium sockliner features higher rebound properties while providing excellent moisture management and a high-level of breathability.