[This review was collected as part of a promotion.] The Bentgo - Set of 4 Slim Ice Packs - Blue goes great with the Deluxe Bentgo Lunch Bag . They stay frozen in my lunchbox at room temperature for about 6 to 8 hours.I like the thin design that is not bulky and does not take a lot of space in the lunch bag. It is easily cleaned and refreeze fast for next day. I would diffidently recommend.

These slim ice chillers hardly take any space in my freezer or lunch box. They keep my food cold all day long. Will definitely buy again.

These chillers are perfect because they’re nice and slim! You can put one on each side and they don’t take up much space! Exactly what I was looking for for my kids lunch bag!

Bought these specifically because they were 0.3 inches thick but they're more than twice that—they're over 0.6 inches thick, and won't fit where I needed them.

We love these ice chillers to put in my daughters lunch bag! They are great quality and keep frozen a long time!

It’s perfect size for lunch boxes and stays cold for a long time!