B3 real shearling sheepskin leather jacket is made of 100% genuine shearling sheepskin. They have a full-length zipper and two zipped hand pockets. The wool is not processed; therefore, it retains its natural moisture repellent property and breathability. Wool insulates better than any synthetic fiber by trapping air molecules between the fibers and keeps you warm in cold weather, while allowing your body to breathe in hot weather. It's the perfect balance of comfort for all seasons.