Come and see our amazing products. This lunch bag is made of oxford cloth fabric attach thick aluminum film inside of the bag, good cold and heat insulation performance, wear resistant, scratch resistant, stain resistant and easy to take care,big enough to hold lunch box, milk bottle, water bottle, fruit.Drum storage bag with detachable strap and double layer, three layers, four layers three sizes to chhoose which make the bag suitable for school, working, picnic, shopping, outing,can be used as a gift for relatives, friends, adult and children.Customize is available.Price is for two layers and price for over 800pcs is for sea shipment. Pls confirm further with us if any query about packing info, inventory status and time schedule.