Merrell MQM Flex 2 low hiking shoes size 10Thermoplastic polyurethane and mesh uppers are tear-resistant; thermoplastic polyurethane toe caps protect your feet from rocks and rootsTongue-integrated lacing system provides a more secure fit; bellows tongue keeps debris outKinetic Fit™ Base removable contoured insoles provide flexible supportFLEXconnect™ dual-directional flex-groove EVA foam midsoles enhance flexibility and stabilityRock plates offer underfoot protectionMountain-grade Quantum Grip™ rubber outsoles with 5mm lugs provide rugged tractionMerrell Air Cushion in the heels absorbs shock and adds stability