The Fanatic Jacket by Sitka was strategically designed with the serious whitetail hunter in mind.Critical components such as WINDSTOPPER® fabric, Primaloft® insulation and a removeable hood work together to help keep you comfortable and in the stand. Another unique feature on the Fanatic Jacket is the side zipper design, which allows for a kangaroo pocket to keep hands warm and ready for that next shot. This feature also places the zipper on the hunter's shoulder and not in front of their chin. Articulated sleeves allow for a full range of motion and help to minimize bulk while well thought out pockets are designed to secure all of the essentials like your grunt tube and range finder.