Sorel Caribou in Tan. - size 10.5 (also in ) Sorel Caribou in Tan. - size 10.5 (also in ) Suede and rubber upper with rubber sole. Lace-up front. Fleece lined. Waterproof. Shaft measures approx 10 H. SORE-MZ27. 1002871 237. Founded by social entrepreneur and travel writer Leila Janah, Sorels are functional, beautifully crafted boots created for those who are not afraid to create, to accomplish, to do. They are made with purpose, for those with purpose.