control - boa® snowboard boots for men.features:fabric: synthetic upper fabric.outsole: contact uniliteâ„¢ rubber outsole.fit system: boa® fit system with h4 coiler dial and internal ankle harness.insole: sole re-purpose insole.closure: zonal closure.lining: response liner ii.flex rating: 4/10.other features: articulated construction.composition:upper: synthetic / lining: textile / outsole: eva.