Lowa Men's Tibet Pro GTX Backpacking Boot 100% Nubuck leather Vibram sole Lightweight alloy lace loops with sprung lace hooks Seamless GORE-TEX lining Climate Control System enhances air flow and moisture management Balance Insole with slow-reacting foam cushion and moisture-wicking C4 Tongue follows anatomical contour with natural flex 5mm Nylon TPU full-length and -width shank