Reebok - Premier Ultra DMX II (White/Black/Athletic Yellow/Sport Grey) - Men's: DMX foam for cushioning. DMX Shear vertical/horizontal cushioning, reduces the stress of heel impact. Carbon rubber heel strike for durable traction. Forefoot flex grooves add flexibility. Transition Bridge aids heel-to-toe transition. CMEVA midsole offers stability and cushioning. Blown rubber forefoot for cushioning, traction and durability. Removable sockliner accommodates orthotics. 3M Scotchlite(R) material for night safety. Play Dry lining provides moisture management. Open weave mesh upper for breathability and support. Shoe weighs 13.7 oz.