Details: Â Chaco Hipthong Two EcoTreadâ¢ Comfort, performance & ecological all combine in the Womenâs Chaco Hipthong Two Ecotread! This sandal offers the slip-on convenience of a flip flop combined with performance-oriented features and an EcoTreadâ¢ outsole, made of recycled content. It also has new stretch polyester crossing straps that makes the Hipthong Two a casual, yet functional, free-heel solution. Enjoy your everyday in a functional, fashionable and environmentally friendly sandal with the Chaco Hipthong Two Ecotread! MaterialsPolyester webbingADDSTRIDEâ¢ FootbedChaPUâ¢ polyurethane midsoleEcoTreadâ¢ outsole contains up to 25% recycled contentFixed straps in forefoot with pull-through adjustable strapsWeight9 oz.Country of OriginChinaItem #J102480, J102478, J102482, J102486 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 ADDSTRIDEâ¢ footbed, how it affects your walk, and the benefits it provides your body!