UPPERPerformance mesh withdurableoverlays provides lightweight durability WATERPROOFKEENDRYwaterproof breathable membrane keeps feet dry KEENBELLOWS FLEX reduces energy use in the toe box and allows the toes to bend more than traditional hiking shoes COMFORT SUPPORT Air injected midsole for long lasting cushioning stability shank delivers lightweight support TRACTION Hightraction rubber outsole with multi direction lugs for durable traction