This Camelbak Unbottle is a previous version of the current model. I purchased it several years ago and used on one or two short backpacking trips. I do not believe I have ever used the cleaning brushes (included in this sale). Weight: 12oz Capacity: 70 oz / 2L The item is in good pre-owned condition and has been stored in a clean, smoke-free home. Manufacturer's Description: Double up on hydration with an insulated reservoir sleeve that adds 2 liters of extra water to any pack. In addition to keeping your water supply cool, the insulated sleeve features attachment points that make it easy to secure the UnBottle to a kayak, a larger pack, or any other gear setup. Features External fill means you can top off the reservoir without removing it from the fabric sleeve Multiple attachment points make it easy to lash the UnBottle to boats, vehicles or backpacks Easy-to-grab handle makes carrying convenient while providing a loop on which to hang the reservoir Zippered tube access