This cooler backpack contains a main bag, a front pocket and two side mesh bags. It has a large storage space and a variety of storage space. The bag is designed with hot pressing technology and waterproof and heat insulation. The outer layer of the insulated cooler backpack is durable 600D Oxford, the inner layer is environmentally friendly PEVA material, and the middle layer is thickened pearl cotton. Our reusable reefer bags can keep food warm or fresh for hours, even better with an ice pack for food. Capacity Description: The cooler backpack holds up to 36 cans (330 ml) of drinks, with enough space to hold all your essentials. Washing instructions: Our soft cooler bag should not be washed, scrubbed, dry-cleaned or ironed. Application scenario: Our picnic cooler backpack is suitable for work, picnics, road/beach trips, hiking, camping, biking, going out, etc.