Matevi &reg; Insulated Lunch Bag & Beverage Cooler Matevi  Insulated Lunch Bag & Beverage Cooler Stiffening board included to give it great support can be easily removed to fold bag flat when not in use. Weighs only 3.5oz, dimensions: Height = 11.02 in, width = 10.43in, Lengh = 5.5in Made from 100g non-woven fabric, which is ultra durable and resistant to wear and tear. Folds flat when not in use No matter what you place inside one of these cool bags, it will remain at the perfect temperature until it's time to eat!