Perfect holster for your water bottles. Will hold most 20-24 ounce bottles. Perfect for quick access to water. Easily drops in and pulls out. We include one of our bottles with the BottleHolder free. Comes with 2 molle`s to attach to the Maykker SmartBag system. 700ml / 24oz As with all of our accessories, you must have one of our foundation or base bags to build from. Either the StandardBag or the Low-Rider/ Small Bag.