Similar to Gator's bags, we bought some material,(muslin), similar to bedsheets at the fabric store and my mother-in-law sewed up some great bags for us. They will cover a whole deer or an elk quarter. We usually skin and quarter the animal boning out the neck and rib meat, put it in the bags, tie up the neck of the bag and hang it till time to load the horses. Has worked real well for years. Never had a problem with flys once the meat is in the bags.