Features waterproof and breathable membrane which prevents water from entering into the foot keeping feet dry and comfortable. The heat insulating Thermolite lining keeps toes toasty. Also feature the Mountain Horse patented Stirrup Control System with enhanced grip which helps you maintain the correct stirrup position as well as increase traction on snow and ice while on the ground. A steel shank for stability and a removable insole. Heel part is fitted with the shock-absorbing IPS system which reduces shock impact while walking.