The Stone Glacier Hydro Holster is specifically designed to attach to the hip belt of any Stone Glacier pack for easy, on-the-go access. Don't want it attached to the belt? No problem. Attach it in any number of other locations. Designed to work with Nalgene and other bottles, the holder also features a shock cord retention system to keep it secure.FeaturesWeight - 2 oz.Compatible with all Stone Glacier BagsDesigned to carry a variety of hard and soft water bottles500d Cordura Fabric