All of the same innovative features as the Rimfrost Rider in a lace paddock. A built-in waterproof and breathable membrane prevents water from entering into the footpart up to the first eyelet, keeping feet dry and comfortable. The heat insulating Thermolite® lining keeps toes toasty. Boots 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. Fabric: Fabric: Duralon™/Hydrotech™. Lining: Thermolite®.