Not a lot of response here so I'll throw in my 0.02.....use freeze packs. I use cheapo "came with a 15 pack" freebie coolers with two freez packs...keeps bevys cool for 4 or 5 hours easy with nothing to leak.Looking for a good leak-proof cooler bag.I want something that will fit inside my Can-Am cargo box.Had a Coleman for a while but it started leaking at the zipper.Also something big enough to hold a bag of ice.