Features of the Hydro Flask Kids' Packable Bottle Sling Lightweight fabric easily packs down into its own pocket for quick storage or travel Stretch mesh pocket conveniently holds a house key, lip balm or whatever your little one brings along with them Personalized name tag ensures your child's sling will find its way back home again Fully adjustable nylon ripstop strap accommodates a range of heights for kids 3 years and older Designed to hold our wide mouth kids bottle with an adjustable break-away strap and stretch pocket to house whatever they bring along with them.