Meet The Undisputed Ruler Of The North.

Features:

• Versatile Traction: Customized traction on the fly; easily change soles as conditions or terrain demand.
• Waterproof: 100% Waterproof breathable bootie construction combined with waterproof leather keeps feet bone dry.
• Insulation: 1200g of 3M Thinsulate insulation, highly rated for extreme winter cold.
• Durability: Molded TPU toe cap for durability and protection with recessed stitching for added abrasion resistance.
• Fit System: Boa M4 Fit System for fast and effortless on/off and custom fit.
• Comfort: Premium aerogel frost barrier footbed.

Specifications:

• Temp Rating: Comfort rated down to -60 Degrees Fahrenheit.
• Specs: 11" height / 4lbs 4oz per pair.
• Sizes: 8-15 (whole sizes only).