Don't settle in to your house for winter! Enjoy the outdoors and your horses with warm feet from the Rimfrost. It has a waterproof and breathable membrane on the footpart (up to the first eyelet) that stops water from coming into the boot, while the heat insulating Thermolite® keeps your heat in and the frosty air out. The patented Stirrup Control System™ with enhanced grip allows you to maintain correct stirrup position while on the horse, and gives you good grip on the snow and ice while off the horse.