Teva Men's Riva Winter Mid Hiking Boot 100% Leather Rubber sole Shaft measures approximately 5.5" from arch Heel measures approximately 1.5" Vibram icetrek outsole T.I.D.E. Seal waterproof membrane 200 grams of 3m Thinsulate insulation Waterproof leather upper PU/EVA heel Shoc Pad Thinsulate insulation and significant padding keep feet warm and cozy, even on the iciest trails.