1. High Quality LeatherThis water bottle carrier holder is made of premium neoprene, which is soft and easy to clean and can withstand daily wear and tear. The water bottle carrier Holder has a pocket that can hold your phone and some necessary cards or change. 2. Capacity DesignWater bottle carrier Holder: 10 x 23.5cm/3.94" x 9.25", Phone Pocket: 18 x 10cm/7.09 x 3.94", Adjustable shoulder strap: 85 - 120cm/33.46" - 47.24". Our water bottle carrier holders are designed to fit stanley tumblers 30 oz and 40 oz, simple morden tumblers, Owala tumblers and many other branded tumblers with handles. Please measure the bottle diameter carefully before purchasing. (Please allow 1-2mm error due to manual measurement) 3. Unique designThe water bottle holder is equipped with buckles and a cell phone pocket, making it convenient for you to store your cell phone and small items. Reflective webbing design makes traveling at night safe and worry-free. Adjustable shoulder straps and reasonable internal layout make it easy to carry and use. 4. Perfect GiftThis water bottle holder is not only a fashion accessory, but also an indispensable practical tool in your daily life. Whether you are walking, cycling, camping, going to the gym, commuting, taking classes, going to the beach or any other outdoor activities, it shows your fashion sense and brings you a convenient and comfortable use experience. Choose this water bottle holder to make your daily life better!