Design: Recycled PET plastic bungee cord and lace-lock system for a secure fit Slip-on design for easy on and go Upper contains recycled PET plastic bottles Quick-dry lining for active use Heel lift for a more forward stance and look Contoured fit to support women's biomechanics with room for toes to comfortably splay In-Shoe Comfort: Stability shank delivers lightweight support EVA strobel for added cushioning EVA midsole for lightweight cushioning EVA insole with arch support for all-day comfort Cupped heel for stability Durability & Traction: Non-marking rubber outsole with zonal siping provides maximum traction on wet surfaces Additional Details: Eco Anti-Odor(R) for natural odor control Care instructions: Machine washable. Use a small amount of detergent, wash on gentle cycle, and air dry.