As a Canadian company, every winter boot we design must conquer the harshest elements. After all, it’s hard to feel fashionable if you can’t feel your toes! Cougar’s warm winter boots use different levels of insulation, all of which are lab tested to determine resistance to heat loss and their ability to keep feet warm. The rating is affected by your degree of activity and the rate of blood circulation in your feet. Cougar’s boots are also waterproof and guaranteed to resist leaks under normal wear for a period of six months from date of purchase.