BIGGDESIGN INSULATED LUNCH BAG: Biggdesign Insulated Lunch Bag has a well insulated foil interior to preserve the temperature of hot or cold items in any environment. Its high thermal insulation keeps your food and beverages remain hot and cold for more than 4 hours without an ice box. DIMENSIONS: This small picnic backpack has a height of 14 in, a depth of 12 in, a width of 6 in with16 quart of insulated storage. It has a wide zipper open design to put your lunch containers into the bag or taken out of the bag vertically to prevent any possible leaking out. MULTIPURPOSE USE: To emphasis the usefulness, it has an ideal size to fit lunches inside, for taking to work or school and ideal for anyone who doesn't have access to a fridge at the workplace or who go eat offsite. Comfortable shoulder straps also make this easy-to-carry design ideal for taking on picnics, camps, outdoors, grocery shopping even use as a breastmilk cooler bag.