Goldwheat Lunch Box Bag Insulated Lunch Cooler Tote Bag for Work/School/Picnic,2 Leakproof Liner,Blue DURABLE MATERIAL: 600D Oxford+Aluminum Foil+Cotton, the 8mm Aluminum Foil insulation can keep food and drinks more cooler or warmer than other lunch bags. Comes with 1 detachable shoulder strap, easy to carry top handle, convenient for your office, picnic, travel, school, etc. EASY TO CLEAN: There are 2 detachable clear liners with velcro to prevent leakage or melting ice and keep the lunch bag clean, you can clean it up in seconds with damp cloth. LARGE VOLUME: There is one main compartment, one zipper pocket at the back and can hold lunch boxes, milk, sandwich, fruit and snack. Keep temperature for 12-20 hours. GOOD TO KNOW: Please pay attention to the dimensions; Please put ice pack around the foods or drinks for long-distance trip to keep them fresh; The clear liners inside don't cover all the sides, please do not lean the bag too much; The lunch bag is not machine washable. DIMENSIONS: 8.9 x 6.1 x 7.7 inches (L*H*W); Weight: 14.4 ounces. With 30 days money back, 1 year warranty and easy-to-reach customer service.