WATERPROOF, INSULATED COMFORT IN A HIKE-INSPIRED PLATFORM. 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: 400g of 3M™ Thinsulate™ insulation for the ultimate warmth during intense adventures like snowshoeing and hiking. DURABILITY: Protected Stitching around the heel for prolonged thread life & reinforced rubber toe cap for added abrasion resistance. FIT SYSTEM: Boa®M4 Fit System for fast and effortless on/off and custom fit. STABILITY: Molded heel counter delivers superior support without sacrificing flexibility. COMFORT: Premium shock absorbing polyurethane footbed. TEMP RATING: Comfort rated down to -30 Degrees Fahrenheit. SPECS: 9” height / 3lbs 12oz per pair. SIZES: 8-14 (half sizes 9.5, 10.5, 11.5)