
Overall I'm happy with the backpack/cooler. I bring lunch to work on the 12-14 hour shift and everything stays cold. When I get home, the two ice packs I use are thawed but not cold yet, so I dare say 12 hours is the cooler limit. I use it daily and while it's nice to have everything in one bag, my only complaint would be that this backpack isn't as big as the website makes it out to be. I can fit my main meal in a cooler with two drinks and ice packs, in the middle compartment of a Microsoft Surface Pro (anything bigger won't fit as the surface barely fits) and in other pockets, pens, business cards, flashlight etc. Well I say those Bag is big enough but it's ONLY big enough and the reason for the four stars is heartfelt because I imagined it to be a bit bigger. If I knew how big it is, would I buy it again? i think i would

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