Maximizes stability and adaptability on nearly any surface. Waxed canvas provides exceptional durability. The medium weight fill provides support and flexibility. A rear bag provides a stable shooting. Lightweight and compact, for easy transport to the range or field. Textured surface provides a secure grip and stability. Birchwood Casey BAG-SSFLU Steady-Shot Foxtrot Bag Ultralight Tan Wax Canvas Rear Bag.