Danner Sierra 8in 200G Insulation Boots Brown 7D. Waterproof full-grain leather upper with breathable Cordura nylon;GORE-TEX waterproof breathable lining; Fiberglass shank; Danner Airthotic heel cradle and arch support ;Handcrafted stitchdown construction for strength and stability;Thinsulate Insulation;Vibram 1276 Sierra outsole for traction in diverse terrain Specifications for Danner Sierra Boots: Manufacturer: Danner Gender: Male Boot Shaft Height: 8 in Age Group: Adults Additional Features: 200g Insulation Color: Brown Activity: Hunting Activity/Occasion: Tactical Footwear Upper Fabric/Material: Cordura Denier Nylon Full Grain Leather Water Resistance Level: Waterproof Condition: New Fastener/Closure Type: Laces Package Contents: Danner Sierra Boots Danner 63100-7D: Sierra 8in 200G Insulation Boots Brown 7D