The supremely cushioned, neutral ASICS GEL-Nimbus 19 running shoes are better than ever. This new edition features a full FlyteFoam™ midsole technology, giving runners incredible, long-lasting responsiveness. The supportive, yet seamless jacquard-mesh upper moves with the foot without constricting natural foot patterns. Runners will experience a noticeable amount of toe spring and a better fit at the heel with this version. As usual, ASICS® provides fun colors that bring excitement to training and racing. Upper: FluidFit® combines multi-directional stretch mesh with stretch reinforcements that adapt to the athlete's foot and create a truly customized glove-like fit. Heel Clutching System™ provides improved support and creates improved heel fitting environment. Seamless Construction reduces the potential for irritation and friction caused by traditional stitches and seams. Discrete Eyelets disperse lace tension and create a customized fit environment and enhanced upper comfort. Mesh provides breathable flexibility. Midsole: FlyteFoam™ Midsole technology provides optimal comfort and a responsive ride. FluidRide™ provides the ultimate combination of bounce back and cushioning properties with reduced weight and exceptional durability. Rearfoot and Forefoot GEL® Cushioning Systems attenuate shock during impact and toe-off phases, and allow movement on multiple planes as the foot transitions through the gait cycle. Guidance Trusstic System® integrates Guidance Line® construction for enhanced gait efficiency while providing midfoot structural integrity. ComforDry™ X-40 Sockliner features higher rebound properties while providing excellent moisture management, high-level breathability and antimicrobial properties. Outsole: Guidance Line® vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency. AHAR® ASICS High Abrasion Rubber placed in critical areas of the outsole provide exceptional durability.