Saucony Ride 4 Running Shoe (Big Kid) 100% Leather and mesh Rubber sole SRC (Super Rebound Compound) in heel and forefoot provides shock absorption Visible Heel ProGrid technology provides superior heel cushioning TPU shank provides extra support and helps to hold the foot in place Triangle lug outsole with XT 900 rubber compound for increased traction and durability Impulse EVA midsole for lightweight and responsive cushioning provides greater durability responsive than CM EVA