Grundéns Deviation Thermo Tall Boots

Traditional ice boots keep you warm by burying your feet in bulk. The Deviation Thermo defies that trade-off: warm to -30F and built to move, from a static shelter setup to a morning of hole-hopping. 800 g of zonally placed Thinsulate surrounds the foot from the ankle down, putting heat where you need it and cutting bulk where you don't. A full 5mm neoprene lining delivers above-the-calf, 100% waterproof coverage, and a removable footbed with heat-reflective Mylar traps warmth back at your feet. Underfoot, an aggressive walnut shell lug bites into ice, snow, and slush. Oversized pull handles and a gusseted, one-hand-adjustable calf make for easy on with gloves. This is warmth without the bulk for ice and extreme-cold conditions.

• Above-the-calf, 100% waterproof construction
• Removable EVA footbed with grid-fleece topsheet and heat-reflective Mylar flooring
• Full-length molded EVA midsole
• Aggressive oversized lug compound with walnut shell grip and outrigger wrap
• Wrapped rubber coverage with reinforced heel and toe
• Oversized, glove-friendly reinforced pull-on handles
• Gusseted calf with one-hand adjustment strap
• 800g zonally engineered Thinsulate insulation below the ankle
• Full 5 mm insulative neoprene lining throughout