Product Details Manmade Imported Rubber sole PGuard Toe Protector Synthetic Leather and Mesh Upper 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. P.H.F (Personal Heel Fit) Collar Lining Solyte Midsole Material: A lighter weight midsole compound than ASICS' standard EVA and SpEVA. Also features enhanced cushioning and durability. The new GEL-Challenger 10 Tennis shoe provides exceptional comfort with Rear foot and Forefoot GEL Cushioning Systems. Outstanding stability is achieved via the Lateral Propulsion Truss tic Technology while the excellent upper fit is addressed with P.H.F.™ fit system in the collar. The new re-designed upper emphasizes midfoot support through the use of an extended Flexion Fit forefoot and synthetic leather midfoot brace for improved stability. A perfect choice for that everyday tennis enthusiast. In 1949, Mr. Kihachiro Onitsuka began his athletic footwear company (Onitsuka Co., Ltd.) by manufacturing basketball shoes out of his living room in Kobe, Japan. He chose the name ASICS for his company in 1977, based on a famous Latin phrase "Anima Sana In Corpore Sano," which, when translated, expresses the ancient ideal of "A Sound Mind in a Sound Body." Taking the acronym of this phrase, ASICS was founded on the belief that the best way to create a healthy and happy lifestyle is to promote total health and fitness. Today, ASICS offers a full line of performance- driven athletic shoes and technical active sports apparel and accessories dedicated to bringing harmony to the body and soul.