Three-piece backpack for kids Material: The school bag and lunch bag are made of polyester fabric, the rice bag is insulated, the external of the insulated water bottle is made of plastic, and the inner liner is made of 304 stainless steel. Size: The backpack is 11.02x5.12x17.32 inches (L x W x H), the lunch bag is 8.26x5.11x8.66 inches (L x W x H), and the insulated water bottle is 3x3x8.46 inches (L x W x H), which is suitable for children Features: 17-inch children's bag, large capacity space, can store children's back-to-school items, water bottles and umbrellas can be stored on both sides of the bag. There is a layer of insulation inside the rice bag, which can be kept warm and cold, and can be used all year round. The upper level has a net that can hold small forks, knives and spoons. With detachable shoulder strap and handle, can be carried, diagonal or single shoulder. Medium capacity insulated water bottle with handle ring, suitable for children to grasp, easy to carry Application scenario: This three-piece backpack for children is suitable for a variety of scenarios, not only for school use, but also for travel, sports, summer camps, picnics, mountaineering, beaches, parties, vacations and other scenes to meet the needs of children from science classes to outdoor classes Gift: This backpack set can be customized according to their own preferences, create their own special backpack set, is the perfect gift for children's back-to-school season, but also Christmas, Thanksgiving, Halloween for boys and girls the best gift Warm reminder: This size data due to different measurement methods, error within 1-2cm is a normal phenomenon. When taking pictures, due to the difference in light and screen, the product color difference is normal.