American Mountain Supply Rear Sniper Bag for Prone Rifle Shooting Heavy Duty 600D Nylon Fabric Made in USA Heavy duty 600D poly or 500D nylon fabric Designed for prone Shooting in rough, uneven Terrain 1 pound of lightweight polymer fill, won't retain water Smooth easy feel to squeeze, filler has only round edges for consistency in Use Angled nylon strap for slipping around your rifle or hand