Outdoor Products Aqua Sling
7.25 in H x 3.5 in D
Here's what other sites are saying:
You'll never go thirsty again with the Outdoor Products Aqua Sling along for the ride. Holds most water bottles up to one liter in volume; adjustable toggle closure secures the bottle in the sling. Throw it over your shoulder with the adjustable shoulder strap and you're ready to go; side-release buckle provides easy on/off. Lightweight mesh construction lets you easily see how much liquid is left.