The buttons on the sleeves can be opened to reveal slits, allowing the pullover to be worn in a variety of ways. The front and back are knitted in different ways. The material is very light and warm, and is made from brushed raccoon hair. (This material is made by a manufacturer that has obtained ICCAW certification, which is both animal- and eco-friendly.) Since only a limited amount of this precious material can be obtained, the proper quantity is arranged more than a year in advance every year and a limited number of items are made. The anti-static treatment prevents static electricity from occurring even when layered. model number: CT24329 24329