Jay Bags HB-54 Lunch Reusable Insulated Food Bag, School Keeps food, drinks or groceries hot or cold for up to 3 hours. Square bottom allows for larger capacity and snap closure is ideal for maintaining hot or cold. Each individual bag has handles to transport your goods to your final destination; folds completely flat - easy to store. Safe & easy on the environment - made from recycled materials; BPA free and food safe. Light Weight, waterproof, easily washable and sturdy (holds up to 30 lbs).