The Reebok SubLite Duo Run running shoe features a synthetic/mesh upper that brings comfort, fit, and durability. Reflective material for night visibility. Removable PU sockliner accommodates orthotics. 3D Ecofilm offers lightweight, seamless support for irritation free fit. 3D Ultralight delivers a lightweight, natural foot-strike. Medial support harness locks the foot over the center of the platform. Dual injected midsole provides ultra lightweight, responsive cushioning and enhanced flexibility. Forefoot flex grooves add flexibility. Carbon rubber heel strike gives durable traction. Wt. 9.2 oz.