CHILLERZ Large Reusable Ice Pack (4 Pack) for Lunch Box – Long-Lasting Gel - Super Slim and Lightweight Cool Cooler Packs - Makes Your Food Stay Fresh, Cold and Tasty

Perfect size for a personal small coolers. So thin that you may use all 4 at once, lining the cooler walls. Used together with pre-chilled beverages, usually last at least 8-10 hours in my small soft side Yeti. Also great to use with ice. It makes the ice last much longer.

These work well and I like how thin they are - I often put them all around (on 4 sides) an item I am trying to keep cold in a thermal bag on the way home from the grocery store. So much better than one ice pack that keeps only a small part of an item cold while the rest of it is not kept as cold. I've used these many, many times and they have held up well so far.

Works great with the cargart cooler/lunch box-book bag.

KEEPS COOL

Small enough to fit in the ice pack pocket of my lunch bag. But they don't stay cold all the way to lunch time. From the time I pack my lunch just before leaving for work until the time I am able to take my lunch break is 5 hours. Even using two of them (one in the pouch in the lid of my bag, the other standing up at the side) by the time lunch rolls around they have completely thawed and my food is approaching room temperature.

while working inside an air conditioned home i found that one of these packs maintained a relatively cool temp however i doubt this would hold well outside for working and the like.

I’m very happy with these and will oder more. I’ve had them for over a month now and they work very well and the slim design is one if the reasons I purchased them. They keep everything in my cooler ice cold and sometimes frozen with ice, I only have to refreeze them once a week.

doesnt last as long because of the size/shape but it fits my lunch box perfect and it works as advertised