Asics Men's Gel-solution Speed 3 Clay Tennis Shoe 100% Synthetic Imported Rubber sole AHAR: Acronym for ASICS High Abrasion Rubber. Placed in critical areas of the outsole for exceptional durability. PGuard Toe Protector Rear foot and Forefoot GEL Cushioning Systems: Attenuates shock during impact and toe-off phases, and allows movement on multiple planes as the foot transitions through the gait cycle. Flexion Fit: Proprietary upper which provides form-fitting comfort without sacrificing support. Truss tic System: Reduces the weight of the sole unit while retaining the structural integrity of the shoe.