Main Material: polyester.Size:20*17*24.5cm.Weight:250g.Capacity:6.0L.Closure type: zipper.Style: Lunch bag.Long term thermal insulation: the Winmax insulation bag is internally made of non-toxic aluminum foil (excluding BPA), the external use of encrypted fabrics, and the addition of 5mm foam in the middle. Under multiple action, the food can be kept for 5-8 hours.Rugged and durable: 600D densified polyester fiber is used on the outside, which is durable, tear resistant, wear-resistant, with a little splash proof. The lining is aluminum foil, which is easy to clean. The portable uses threaded ribbon, and the inside is filled, which is not only durable but also anti-skid.Novel style: fashionable and simple appearance, colorful patterns, beautiful collocation with clothes, it is very suitable for carrying healthy food and snacks in offices, schools, picnics, travel and other outdoor activities.Portability and capacity: the hand with stuffing is comfortable to hold, foldable and portable. The size is 20 * 24.5 * 17cm, and the capacity is 6.0l. It can easily store Bento boxes, milk, fruits and snacks. It weighs 250 grams and is very light to carry.