①Made from flexible 100% BPA free plastic, it is non-toxic and safe to hold water and drink, featuring long service time.
②Each collapsible water bottle attached with a carabiner. It is designed for connecting with your backpack, making the whole trip more convenient to carry and not easy to lose.
③Easy to fill and roll up, and you can write the name on the white slot of the water bottles to category and identify them more easily.
