Hot Cold Bag | Insulated Thermal Cooler, Lunch Size, Red & Blue Keep items hot or cold and frozen for hours at a time. 100% recyclable, food safe, and reusable. All printing done with safe, non-toxic, water-based ink. Light weight, waterproof, easily washable and sturdy (holds up to 30 lbs). Great for any activity - grocery shopping, travel, the beach, lunches ... Folds completely flat - easy to store.