Lunch Box provides double capacity when expanded (approximately) and up to 6 hours of fridge cold performance (results will vary according to the ambient temperature, food type, volume and starting temperature of the contents)! The lunch box includes 2 high performance Ice Walls that in combination with SuperFoam insulation, Therma-Flect radiant barrier and leak proof lining (zipper is not leak proof) provide superior cooling to keep food fridge cold (40°F /4.4°C) up to 6 hours (results will vary)! The Ice Walls fit inside two exterior pockets allowing you to pack lunch the night before, refrigerate it and insert the frozen Ice Walls in the morning without losing any of the cold by opening the lunch box. The quilted exterior of the lunch box has a durable, water repellent coating for easy cleaning and an insulated front pocket. The lunch box can be carried either horizontally or vertically by its handles or by the removable, adjustable shoulder strap. Please review photos as they are part of the description. Back to school Office lunch Pack a lunch Snackbox Picnic Graduation College Shoulder strap Coolerbag