The Tropic cooler backpack has a capacity of 20 liters and can hold 7 x 1.5-liter bottles. It is the perfect companion for everyday use as well as for hiking or outings. Not only do your drinks and snacks stay pleasantly cool, but the youthful and dynamic design makes it a real eye-catcher. On the outside, the lunch bag cooler is made of high-quality polyester, while the inside is equipped with an antimicrobial additive that prevents the growth of bacteria.