Brand: Montbell I am selling this item because I haven't used it much and it has been stored in my closet. It has been used 5 or 6 times, so please consider this a used item. This is a lightweight and compact bottle holder that can be attached to the shoulder harness of a backpack. It fits bottles with a diameter of 5.5 to 7.5 cm. It comes with a cord to prevent the bottle from falling out due to shaking or impact. Specifications [Material] Denier [Weight] Approximately 45g [Color] Black