Premium Material: The bottle holders are made of high quality nylon, durable and elastic, the mesh design is of high flexibility, it can help you put the bottle more easily. Upgraded Design: The nylon mesh bag has two pockets, the larger one is designed to hold a water bottle, and the smaller one you can use to store phone, coins, keys, tissues, pens , etc. Adjustable shoulder strap: This bottle holder is suitable for children and adults, the shoulder strap is adjustable, the maximum length is 64 cm and the minimum length is 33 cm. Wide application: The water bottle carry bag is a great tool for beach, sporting events, school, walking, camping, hiking, running, jogging, you can free your hands with this water bottle holder. Tips for use: the bottle holder pocket is only suitable for the diameter of the bottle which is less than 8 cm and the small pocket for the phone that is smaller than 16.5 cm.