TrailBreak Lunch Jugs have a double walled vacuum insulated construction in stainless steel making them rugged and durable. The powder coating on the outside, available in three colors provides a grippy surface. May it be for a lunch in the nearby park, or a hot stew when skiing. A hot meal is always better than just a cold snack, especially in the winter when hungry little fighters need a quick meal. The wide opening makes it easy to fill, eat from and to clean after use. The stainless steel inside doesn`dt retain or absorb flavors.