Specification：Material:300D Oxford+Aluminum foilSize：38*18*40CMColor：Gray300D Oxford +Heat sealed no-leak liner+ insulation material with more foamLightweight yet Durable: Made of heavy duty 300D Oxford, thicken strong durable tear-resistant, water-resistant, Heat-welded liner. Awesome lightweight lunch backpack with cooler for fall sports, picnics, road/ beach trips, hiking, camping, fishing, cycling, Disney, a perfect gift for men women.Large Lunch Cooler Backpack: Deep main storage compartment is large enough to provide roomy capacity for your lunch,meals, beers, snacks or other food, any items you need cool.Leakproof Insulated Backpack: insulation material and leak-proof liner inside of the soft backpack cooler bag work together to make sure anti-leaking and keep food hot/cold for hours.Multifunction: The stylish design of our insulated cooler backpack make it also can be used as a lunch backpack or daily pack. Perfect for lunches, picnics, work or travel.Warm prompt：1.Please allow 1-3CM differs due to manual measurement.2.Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding！