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 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.