Good Bag Waterproof Nylon Lunch Bag Lunch Sack Lunch Cooler Bag Storage Lunch Tote Zipper Travel Organiser Color Blue Imported Dimension: L 8 * H 8.6 * W3.5 IN Features a patented freezable gel permanently built into liner, no need for ice or gel packs The photo shows you how to use it( 3 steps) This portable insulated cooler bag is perfect for day hikes or outings at school, at the park, go to work , on the beach or have a picnic with your family or friends.