Design:

• 100% waterproof breathable bootie construction combined with waterproof leather
• 1200g of 3M™ Thinsulate™ insulation, highly rated for extreme winter cold
• Boa®M4 Fit System for fast and effortless on/off and custom fit

In-Shoe Comfort:

• Premium aerogel frost barrier footbed keeps the feet warm

Durability & Traction:

• Customized traction on the fly; easily change soles as conditions or terrain demand
• Molded TPU toe cap for durability and protection with recessed stitching for added abrasion resistance

Additional Details:

• Comfort rated down to -60 °F
• Height: 11 in.
• Weight: 4 lbs. 4 oz. per pair