This bag is perfect for outdoor picnics, bringing food to kids, bringing food to office workers, etc. Keeping food warm in the winter, and keep ice drinks cooling in the summer. Features: Waterproof and wear-resisting fabric, strong and practical for outdoor use. Essential tools when you have a picnic, potluck, outdoor activities etc. Large capacity and strong bearing force, suitable for both bring a daily lunch and picnic. Inner PEVA film to keep both warm and cold. Leakproof design, don't worry about spilled food getting your car dirty. Double-open zipper, easy and convenient to use. With 2 side bags to put tissues. Specifications: Color: black, grey, navy blue (optional) Material: oxford cloth+PEVA Capacity: 18L Item size: 420 * 290 * 190mm / 16.5 * 11.4 * 7.5in Package size: 450 * 300 * 100mm / 17.7 * 11.8 * 3.9in Package weight: 540g / 1.2lb Packing List: 1 * Backpack