This fits perfectly in a couple of the coolers that we use regularly. Fits perfectly in my husband's cooler for work.

The yeti icepack keeps your lunch cold for hours. The pack is still cold at daycare pickup, so i’d say it does the trick! Fits great in my lunchbox and stays cold for 12+ hours.

Bought the yeti lunch bag so had to get this also. These hold up and serve the purpose for camping and traveling to keep the food cold. Durable and great size for most lunch boxes.

They stay cold for a long time but after we used them 2 times they start leaking. Doesnt work ant better than the generic ice packs. With luck, yetis stay frozen for three hours in a cooler, but competitors i bought last all day.