Details: Chaco Native EcoTread™ The Chaco Native Ecotread sandal is unique and simple, designed for the minimalist. This women's sandal features a full grain leather upper and lining for smooth comfort. An adjustable ankle strap helps create a comfortable, personalized fit. Built with Chapu on the Addstride footbed, provides a luxurious feel and comfort. The EcoTread outsole is made from 25% recycled rubber to minimize the impact made on the environment. Cute and effortless, you can't go wrong with the Chaco Native Ecotread! MaterialsFull Grain Leather UpperCalfskin LiningADDSTRIDE midsole. Adjustable FitEco Tread OutsoleLiningLeatherCountry of OriginChinaItem #J102242, J102232, J102240, J102238 1 NeckReduces the occurrence of posture-related neck aliments2 BackMinimizes strain on the back muscles and helps maintain proper spinal alignment3 HipPrevents internal rotation of the femur, which alleviates pelvis tilt and reduces strain on the hamstring and gluteus muscles4 FemurReduces internal rotation and eliminates strain on the IT band, decreasing IT band friction syndrome5 KneeAlleviates strain on the knee joint, preventing bursitis and medial knee injury6 ShinReduces torsional strain on the tibial muscle structure and the incidence of shin splints7 FootHelps prevent over pronation, plantar fascitis, and various injuries to the foot Lasting arch support controls pronation.ChaPU (polyurethane midsole provides durability for years of adventure.Heel risers increase lateral stability.Multiple widths ensure proper comfort on your adventure. 10 Step ChallengeWatch the 10 Step video to learn about the ADDSTRIDE™ footbed, how it affects your walk, and the benefits it provides your body!