LARGE SIZE: The insulated bag is quite large (dimensions: 58cm x 35cm 38cm). Holds 40 500ml Coke bottles. Ideal for delivery and shopping. High thermal insulation: The thermal insulation bag has three layers of insulation (high-quality aluminum material; thickened thermal insulation sponge). The refrigeration temperature can be kept at around 20 after 4 hours, and the heat preservation temperature can be around 40). after 4 hours. The temperature lock is very good. Weight carrying: The cooler bag can hold up to 60 pounds. Good quality and durable. Can be reused for over a year. Durable and reusable: Our cooler bags are made from recycled materials, helping to reduce plastic pollution in oceans and landfills. Foldable for easy storage: Our insulated bags are suitable for bulky and irregularly shaped items. It folds easily and can be stored compactly in the kitchen, under a car seat or in the trunk for quick and easy access