Designed to fit favorite lightweight water bottles like a glove, the Bottle Rocket attaches to your shoulder strap for quick, easy access to your liquid of choice. With lightweight EVA foam reinforcements and a top tether, it&';s ready for one-handed, on-the-go operation without collapsing or bouncing. Features and Specs Secure attachment system Elastic loop to lock in bottle EVA foam reinforcements on top, bottom, and spine Lightweight mesh and recycled Robic nylon Average Weight: 1.7 oz / 47 g Height: 8.7" / 22 cm Width: 5.5" / 14 cm Materials: 100D Recycled Robic Nylon