SoLyte Midsole - A spongy layer between the sole and upper designed to help improve cushioning, lowering weight and decreases breakdown.,AHAR+ - A tough material placed in critical areas of the shoe to provide excellent grip without compromising durability. AHAR+ is a lighter version of AHAR.,Stablelite ESS Chassis (Trusstic System) - Designed for stability and torsion control.,Rock Protection Plate - A rugged plate in the sole which protects the foot from sharp objects such as rocks and branches.,Rearfoot GEL Cushioning - ASICS GEL is a cushioning system created to meet the requirements of both professional and recreational runners.