After using everything I could get my hands on, bought everything I could find, the only one that checked all my boxes was the Big Sky Insulite! It is efficient, works very well, is very light weight and is very packable. The large size works for two serving packaged meals, and the new small single serving size is perfect for one quart DYI freezer bag meals. You score a perfect 10 out of possible 10 on this one!
Thank you VERY MUCH your GREAT REVIEW!