Design: Quick-dry webbing made from recycled plastic using traceable, verifiable REPREVE(R) polyester yarn by Unifi(R) supports your foot and stands up to abuse Easy hook-and-loop closure for kid-friendly on/off and a customized fit In-Shoe Comfort: Lined with lightweight, breathable mesh that keeps your feet cool and comfortable Durability & Traction: Rubber outsole offers sure-footed traction Additional Details: Treated with Life Naturals, a responsibly sourced peppermint-based antimicrobial that fights the growth of odor causing bacteria Vegan Weight (half pair): 7.25oz