I wore these ONCE... sadly, I have a foot injury that doesn't allow me to wear these. I don't have the original box anymore. From manufacturer: The Flatform Universal takes our iconic Universal to new heights. Finished with earth-friendly Unifi® recycled polyester straps for a sustainable style that makes a statement while keeping plastic out of landfills. Universal Strapping System™, Quick-dry webbing made from recycled plastic using traceable, verifiable REPREVE® polyester yarn by Unifi® supports your foot and stands up to abuse Easy hook-and-loop closure comes on and off quickly and gets the fit just right Molded EVA midsole with heel cupping and arch cookie for added support Rubber outsole for durability and traction Treated with Life Natural, a peppermint-based anti odor treatment Sustainability Initiative(s): Vegan, Webbing made from recycled plastic using traceable, verifiable REPREVE® polyester yarn by Unifi® Best for: festival wear, getting around town, all-day wear 1.75" platform height Half pair weight for size W7,M9,I2/3,T4,K13,Y4: 8.5oz RN 88276