Vkenis Lightweight 35L Folding Travel Backpack Practical Waterproof Daypacks Breathable mesh shoulder straps, bottle holder on the both sides Water-repellent and tear-resistant Nylon Material Can be folded into a pouch and expanded to a big backpack It will be a fantastic necessity for not matter outdoor sports or leisure activities in or out of the city Convenient for hiking,traveling,camping,running,cycling,mountaineering, suitable for women girls boys teenager students