Asics GEL-Blast 3 Indoor Court Shoes Synthetic Leather Upper - designed to give durability and comfort, withRhynoSkin forefoot SpEVA Midsole - designed to give maximum cushioning whilst still being lightweight. Forefoot and Rearfoot GEL Cushioning - specifically placed to give maximum cushioning and ASICS Biomorphic Compression - features unique Engineered Gradient Compression technology I.G.S. (Impact Guidance System) - the system has been designed to meet the demands of all