600D Oxford +Heat sealed no-leak liner+ insulation material with more foam 

Lightweight yet Durable: Made of heavy duty 600D Oxford, thicken strong durable tear-resistant, water-resistant, Heat-welded Peva 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: 16.1" x 11.8" x 7.1" (L x W x H), Weight: 1.32 pounds / 600g, can hold at least 25 cans. 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: High-Quality 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. 

Multiple Pockets: 1 main roomy storage compartment for your lunch, 1 large front zipper pocket with mesh divider to keep utensils such as phone, keys, wallet etc all at once, plus 2 side mesh pockets for quick access such as guide books, water bottle or umbrella. 

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.