MainStay Ration Bars
MainStay Ration bars are high calorie food bars that have a sugar cookie taste with vanilla and lemon. They are popular with children. The survival food bars come in 400, 1200, 2400, and 3600 calorie rations. Each food bar is sectioned off into portions that break away. Ration bars have a 5 year shelf life and are usually purchased to be used in the first 72 hours of an emergency.