This 15 Litre cool bag with ample space can accommodate a combination of food, containers and drinks The bag is fully insulated using four layers of premium materials to guard against heat penetration, ensuring the contents can be kept cool or warm for 5-7 hours. Cooling time can be increased if ice packs are used in conjunction with the bag. The main compartment of the bag has a zip closure for quick, yet secure access There is also a zipped pocket on the side and a mesh pocket on the front and back of the cooler, which are great for holding small items such as keys or a mobile phone. Made from high quality 600D Polyester, the bag is both durable and lightweight.