This food delivery backpack keeps foods hot or cold for 4-5 hours, it is very sturdy and waterproof (made of a waterproof material) It has two firm side pockets and a Card pocket. Meanwhile, comes with a Divider which can be removable freely, and a Cup Holder which can be moved off. The Backpack is designed to comfortable. First, back has three breathable paddings, which makes a big difference on hot days. Second, it has many options for stabilization, like a chest and lower body strap. What's more, It is designed as a stylish delivery bag.