Features: Polyester Fabric: This water bottle bag is strong and sturdy waterproof and anti-wear and is not easy to be damaged. keeps your water bottle or other supplies from dirt mud or waterdrop. Stable: These adjustable drawstring bottle cages are designed with a drawstring on top that can be tightened or loosened according to your actual needs making it easy for you to access the water bottle yourself Portable to Use: The kettle bag has a buckle which is very suitable to match your backpack adding personality to the backpack you can hang it on your belt so that you don't have to hold it in your hand Suitable Occasions: These travel bottle bags are convenient for holding water bottles plastic bottles glass bottles sports bottles etc. and are ideal for camping running jogging climbing hiking cycling cycling etc After-sales Service: If there is any problem with our products please contact us first we will provide you with solution in the fastest time. So why not give it a try? Specification: Material: Polyester Capacity: 300-850ml bottle. Note: There might be a bit of color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. includes: 1 Piece Water Bottle Bag. "