TheMen's Big Sky II 11' Insulated Waterproof features:

• The proprietary waterproofing system, B-DRY, letssweat escape while keeping moisture out
• The proprietary insole is molded to match the specific shape and construction of each pair of boots to deliver the kind of fit, feel and performance that’s unmatched in the industry
• Oboz ACT (Adaptive Cushioning Technology) Impact leverages Intelligent PU to create lightweight midsoles for a variety of footwear with long-lasting durability, support and rebound for optimal comfort
• 200 gram PrimaLoft BIO insulation and 100 gram for Big Sky Low. PrimaLoft has set sustainability forward with the first-ever biodegradable*, 100% recycled synthetic fiber, for insulation and fabric applications
• Oboz quintessential hiking bottom package is built to be supportive and protective and features Vibram Megagrip
• These thermal insoles feature an insulated top sheet for warmth and a Mylar bottom sheet to reflect heat back to your foot, keeping toes nice and cozy