[HIGH QUALITY MATERIAL] The outside of the backpack is made of leather. The lunch bag is made of waterproof 1680D oxford fabric, durable, waterproof and easy to clean. to clean. The lining is made from scratch. Made of high quality aluminum foil. high quality food and filled with 8mm EPE foam for durability. exceptional [Large capacity] The lunch backpack can hold a large box of food, a 1-liter thermos flask and some fruit. The two side pockets can hold a bottle of mineral water and tissues, and the front pocket can hold items such as a cell phone or keys. The capacity of the bag to; lunch is 8 liters. Can hold plastic boxes; lunch, fruit and drinks. The bag lunch is functional, large capacity; and easy to clean [Excellent thermal insulation effect] The inner layer of the thermal insulation bag is made of high-quality PAVE aluminum foil. environmentally friendly, food-grade and filled with thick EPE foam. High-quality materials can keep ice pack warm for 6 hours and refrigerate for 12