Most insulated lunch bags claim to maintain a safe temperature for up to 4 hours (with an ice pack for cold foods), providing ample time for commuting to the office or traveling longer distances.

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Manufacturers may list the max time the insulated lunch bag is designed to keep food cold (sticking an ice pack inside can also help), though Amazon reviews can provide insight into this as well.

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These thin ice packs are just 0.5” thick, allowing them to fit perfectly into any lunch bag, lunch box or cooler ... packs kids at the top/sides of your insulated cooler to keep contents cold ...

First, the size of the cooler you will be using. If you or your kids want to keep items in an insulated lunch bag cool, a single small ice pack should suffice. The same goes for smaller coolers.

and ice pack. It's even large enough to accommodate a 12-ounce drink alongside your food. It's well-insulated to keep food fresh. The outside is pretty and simple, yet this lunch bag has thick ...

Lunch Box With Insulated Bags Lifewit Large Lunch Bag Insulated Lunch Box Soft Cooler Cooling Tote for Adult Men Women, Black 12-Can (8.5L) 45282 ratings ...

Vera Bradley’s classic quilted fabric has been upgraded with an insulated interior and slip pocket for ice packs, so your food stays cool. It’s not the largest bag, but for a light lunch ...

Below, I rounded up top-rated ice packs to throw into a cooler or lunch bag that’ll keep your food and drinks chilled for hours. LaVecchia prefers brick ice packs because they tend to be more ...