ALTTIMERY Outdoor Nylon Minimalist Tactical Molle Water Bottle Holder Kettle Pouch Belt Bottle Carrier Constructed of Nylon Material This minimalist design bottle holder is such a simple hands-free solution, just makes you cool and keep the water within easy reach Size: 21cm*8cm / 8.26inch*3.14inch (Adjustable and elastic, with single snap on the back), Please keep the main strap located in the middle of the bottle's bottom with the adjustable velcro strap MOLLE webbing for being attached on to molle backpack and most belt It fits 600ml/20.5oz hydration bottle or other smaller size water bottle(the diameter less than 3.14")