FEATURES of the Merrell Women's AllOut Flash Shoe Mesh and TPU upper Protective toecap Reflective details for increased visibility in low light M Select fresh naturally prevents odor before it starts for fresh smelling feet Wash as needed in cold water (gentle cycle) air Dry SPECIFICATIONS of the Merrell Women's AllOut Flash Shoe Weight: 1/2 pair: 4.9 oz 6mm Drop / 14mm Heel cushion / 8mm Forefoot cushion Uni-Fly Midsole disperses impact and stabilizes for a solid takeoff M Select Grip tunes each outsole with durable traction that grips when and where you need it