Why choose Joysay Japanese Wave cooler lunch bag? Specifications: =》Material: 1. Outer: high quality nylon, lightweight, durable, waterproof, environment-friendly. 2. Inner: pearl cotton, high-quality heat-insulating aluminum film, excellent heat insulation. =》Large Capacity: 1. S: 8.86 X5.91 X 11.22 inch 2. M: 9.65 x 7.09 x 12.6 inch 3. One main pocket: easily fit all your day food/drinks. =》Special Design: 1. Simple, cute pattern design. 2. hook and loop fastener closure: easy to open and close. 3. Double sturdy carry straps allow the bag to be worn on the arm or in the hand, you'll always be able to pack and carry a healthy lunch wherever you go. 4. The lunch bag can be folded into your backpack when not in use to save more space. =》Purpose: suitable for daily use, work, school, outing, hiking, traveling, camping, road/beach trip, camping, biking, etc =》Perfect gifts for your friends, kids, family. =》Please note: 1. Not wash it 2. Not rinse it 3. Not iron it 4. Just wipe it with a cloth when it gets dirty =》 Warm Service: If anything goes wrong with your cooler lunch bag, please contact us immediately, we will try our best to solve your problem as soon as possible!