Review on 🐧 Penguin Multicolored Fit & Fresh Coolers by Tyler Blake

One gives my daughter to put in an insulated preschool lunch bag and keeps food cold/cool until lunch at 11:30am. She says the penguin will still be "pretty cold" until then, so I'm assuming it'll stay cool for a pack until at least 1 p.m. My guess is that two or more penguins obviously stay cold/cool longer. A big bonus is that they don't take up space so their containers fit properly and no longer zip tight like other bulkier freezer bags. I would buy again and highly recommend.