ASICS Men's GEL-Solution Speed Clay Court Tennis Shoe 100% Synthetic Imported Rubber sole Solyte midsole Propulsion Trusstic system Full-length Flexion Fit upper ASICS High Abrasion Rubber in critical areas Rearfoot and forefoot GEL cushioning systems Personal Heel Fit dual-layer memory foam collar Built for the unique demands of clay surfaces, this technology-rich shoe offers cushion and traction.