Quick-dry webbing made from recycled plastic using traceable, verifiable REPREVE® polyester yarn by Unifi® supports your foot and stands up to abuse, these sandals save 5 plastic bottles from ending up in landfills Easy hook-and-loop closure comes on and off quickly and gets the fit just right Molded PU midsole cushions and supports mile after mile, even with a heavy pack, TPU shank stabilizes and supports your foot on uneven terrain Rugged Spider Rubber outsole, designed to work in wet conditions, is extremely durable and supplies great traction Vegan footwear, created using synthetic and plant-based materials