Asics - Gel-320 TR (Storm Grey/Black/Silver) - Men's: Versatile and state of the art, a trainer at home on any surface. Visible GEL(R) Cushioning Systems provide maximum rearfoot and forefoot shock attentuation. Impact Guidance System(tm), a technical design philosophy that allows the foot to perform in a more natural manner. Space Trusstic System(tm) allows for midfoot deformation while linking rearfoot and forefoot. SpEVA(R) 45 last increases rearfoot cushioning through enhanced midsole deformation. Stability Cradle, a reinforced EVA component contoured to provide medial and lateral stability. Herringbone designed outsole for better court and hard surface traction. Shoe weighs 14.4 oz.