Laminated Non-Woven Polypropylene reusable insulated shopping bag with zipper closure and waterproof PEVA lining. Bag measures 20" W x 16" H x 6.375" D (51 x 40.5 x 16 cm). Ideal for shopping, trips to the beach or park, pool parties, picnics and more. Bag keeps hot items hot and cold items cold. Maintains temperature for up to 3 hours (+/- 3%). Sustainable reusable product eliminates waste from plastic bags.