Easy to carry anywhere. Take your Hydro Flask bottle with you to walk, hike or attend a music festival. Our Packable Bottle Sling keeps a low profile when not in use, but stays light when you need hands-free hydration. Features. a Lightweight fabric easily packs down into its own pocket for quick storage or travel. a Stretch mesh pockets conveniently hold cards, keys, lip balm and some phone models. a Fully adjustable nylon ripstop strap can be worn across the body or over the shoulder. a Small Sling fits 18, 21, and 24 oz standard mouth bottles. If your bottle is larger, check out the Medium Packable Bottle Sling!. a Diameter: 3". a Height: 7.17". a Weight: 3.52 oz.