As Batman's Wife stated... I believe she meant Polar Bear Cooler. We use a 24 can Polar bear cooler and freeze out steaks and other meat, already seasoned and Vac Packed. We travel from ATL and sometimes overnight in transit. No need for DrY Ice (Although up to 5 pounds is allowed). Pack tight and minimal airspace and it will remain frozen for 24 hr plus trip. We season, Vac-Pack, load into polar Bear cooler laying on its side, and place entire cooler in freezer. Thus no airspaces between packs of meat.

Polar Bear Coolers https://polarbearcoolers.com/products/original-24-pack-soft-cooler. Frequently we find them on sale, but ours have lasted over 7 years with 6 plus BVI trips each year.