The product is made of oxford cloth, and the inner part is designed with pearl cotton + environmental protection film double insulation. It has better thermal insulation, can cut off heat and put it outside, and is not easy to be damaged and easy to clean; It has the function of heat and cold insulation, let the steaming food keep warm and fresh anytime and anywhere. Office workers and students no longer need to face the cold color-changing junk food; You can also enjoy fresh vegetables and fruits to make the nutrition more balanced; it is equipped with removable shoulder strap, which can be carried by hand and can be carried by shoulder; adopt hand-held webbing, comfortable hand feeling, strong antigravity; Nylon zipper, metal zipper slider makes sliding more smoothly; With side net pocket and front pocket, you can place small objects at will, convenient and fast. Suitable for home, office, picnic, school and other places.