I am wondering if anyone can help me find a sling day pack for hunting. I hunt from a cabin or vehicle and do not backpack into remote areas for extended hunts. I travel light because I am usually several miles from the cabin or my vehicle when I am hunting. I shoot right handed and like to keep my right shoulder free from a shoulder strap. I carry my rifle in a sling over my right shoulder when hiking so the pack can not be to wide or it interferes with carrying my rifle. The bulkiest item I want to carry in a pack is a down coat to put under my water proof jacket in case it gets really cold. I have purchased a number of day packs over the years. The one that worked best was called "Rigged and Ready Cross Over Pack". It had a removable orange cover you could put over the pack and it had a waist belt that helped keep the pack from sliding around. The only problem was it only came in one size and I couldn't fit the down coat into it. Since there have been so many advancements in hunting packs over the last few years I am hoping someone will know of a company that makes a sling day pack that will work for me. Thank You