High-quality material: The water bottle bag holder is made of high-quality nylon, which is durable and elastic, and the mesh design has a lot of flexibility, which can help you place your bottles more . Upgraded Design: The nylon mesh bag has two pockets, the larger one is used to store water bottles, and the smaller one can be used to store mobile phones, coins, keys, tissues, pens, etc. ADJUSTABLE STRAPS: This water bottle holder fits both kids and adults with adjustable shoulder straps WIDE APPLICATION: This water bottle holder is perfect for school, commuting, jogging, hiking, camping and traveling, as well as the beach, gym or sporting events. Tips for use: The bottle holder pocket is only suitable for bottles with a diameter less than 8cm/3 inches and small cell phone pockets less than 6.5 inches/16.5cm Material: nylon colour: Multicolor Package Contents: 3 x water bottle holder bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.