Sorel Caribou Winter Boots are steeped in a rich history that began way back in 1962. It was then that Sorel began its quest to launch a highly regarded cold weather footwear line that would perform amazingly well in extremely cold, wet, snowy and icy conditions. Sorel knew that would be no easy task. Nevertheless, Sorel moved forward with combining leather uppers, rubber bottoms and removable felt liners to create boots called the driest and warmest winter boots in the world. .