Smooth faux-leather upper, with adhesive, secure-close tab across center front. Easy-peasy pull-on elastic laces look like regular laces -- with no tying necessary Padded ankle collar, with cozy sherpa lining. Cushioned foot bed. Rugged lug sole is made with 51% recycled thermoplastic rubber. Less waste in the world To measure your shoe size, place a piece of paper on the ground. Stand barefoot on the paper. Using a pen, draw an outline of your foot. Use measuring tape to measure the length of your foot on the paper. Spot clean. synthetic materials 100%