1. The insulated lunch bag is made of Oxford cloth and pearl cotton for continuous use and easy cleaning, insulated aluminum foil to keep your food drinks fresh, cool, warm and delicious. 2.Capacity The size of this lunch cooler bag is 8.46 inches (21.5 cm) L × 4.72 inches (12 cm) H × 5.31 inches (13.5 cm) W. The capacity of this small cooler bag is 4 litres. It can hold 6 beverage cans. This small cooler bag can fully hold your lunch box for work or a day trip. 3.Intelligent design 4L lunch bag The style of this small insulated bag is simple and classic. Just the right size for your daily needs. It can be used as a snack bag, sandwich bag. Suitable for all people such as adult, men, women and children. 4.Versatile The picnic bags are really practical. They are more than just a cooler bag, because the stylish design can be adapted to many places. You can take them to the supermarket, outdoor activities, games or a beach party.