Made of PVC-backed 1200 Denier polyester for the ultimate in high-grade quality. This square shaped, thermally controlled bag is ideal for carrying anything from cold drinks to warm food to anywhere from the blind to the beach. On the inside, there are TWO WATERPROOF LINERS, minimizing the possibility of leakage. The top has a quick access hatch for accessing the inside without unzipping the large square top. On the face of this cooler is a large zippered accessory pouch with two inner pockets for food, condiments, or whatever else you want to carry. Both sizes come equipped with our “Neo-Stretch” Adjustable Shoulder Strap. This shock absorbency shoulder strap makes it so much nicer to carry when these coolers are loaded down. Dimensions: 18 Pack holds up to 18 – 12 ounce cans and up to 2 bags of ice. (11.5” tall x 13” wide x 11.5” deep)