Reebok Realflex Transition Shoe (Little Kid/Big Kid) 60% Mesh, 40% Synthetic Rubber sole Merging all the benefits of barefoot running with the protection of sneakers, Reebok created the low, lightweight, and highly flexible RealFlex Transition running shoes. Breathable mesh upper with synthetic leather overlays for support. Form-fitting design and sock-like feel keeps shoe in contact with the foot. Removable PU insole for extra comfort. Low-profile, low-to-ground midsole for great fit, feel and added mobility.