24 litre cool backpack: large volume of 24 litres offers enough space for food and drinks for several people. The backpack sits well on the back and keeps drinks or shopping super cold with a few ice packs. The perfect alternative to normal cool bags, especially for on the go 【Plenty of Storage Space】The dimensions of the backpack are: 36 cm height, 30 cm width and 12 cm depth. In the front zip you can easily find cutlery or even prohibit space. The inner volume is sufficient for a 1.5 litre bottle and plenty of food. Extra pockets on the sides and front are also available, with bottle opener Waterproof and insulated: it is made of very robust and durable 600D Oxford fabric on the outside and waterproof 2-way zips. The waterproof, insulating inner lining is made of PEVA film and is padded with 8 mm EPE foam. It is lined with a PVC waterproof coating, so the product stays cold for longer Functional: the backpack fits a lot, but it is still compact enough to carry it as a "normal" backpack with cooling function on hikes or excursions. The ergonomic design, together with the padded straps, makes it possible to carry the backpack for extended periods of time without feeling discomfort Perfect travel companion: the size of 30 litres is ideal for trips, picnics or even longer hikes. In summer, such a cool backpack is also a faithful companion on holiday, on the beach and on a bike tour. You can also simply use it as a cool bag when shopping