Boa Closure System

Aggressive lug outsole offers excellent traction and stability

Easy grab heel pull

10 to 1 heat retention factor

Waterproof, windproof, breathable

Aegis microbe shield

Reinforced toe cap, heel counter and side walls

Impervious to water and wind

Ergonomic Comfort Cuff relieves pressure on the calf

Comfort rated to -40°C

Intuition closed cell foam insulation

Increased comfort and support with long term memory

Keep it fresh technology

XR-Performance waterproof breathable membrane