Bulle Women's Catser Tall Winter Boots- BlackCatser is a classic winter boot with rugged construction. It is made to keep you warm and dry with its woven sheep's wool and its Bulle TEX waterproof membrane. Choose a lace up model if you want to adapt it perfectly to the shape of your foot and your ankle a side zip is always there to put them on easily! Bulle TEX waterproof membrane Upper: premium quality suede, leather, and hand finished vegetable tanning Inner: real wool lining Outsole: rubber