UGG's new upgraded Martin snow boots have a unique warm wool design. The upper is made of the finest Australian first-layer cow suede and genuine wool lining. The heel has fashionable and versatile elements. Upgraded non-slip and anti-foaming outsole. The unique wrap-style design adds a layer of sophistication to the shoe. Good elasticity, not tiring on the feet, resistant to folding and wear, size 35-40 (customized to 40),,boots