Hydrate with ease. This bottle delivers fluid through a nozzle with jet-like flow. Features an auto shut-off valve to prevent spills. Bottle body mates up perfectly with Dawn To Dusk cages. Bottles are BPA-free, biodegradable, phthalate-free and are recyclable. With Dirt Mask for clean, dirt free hydrationItem Specifications: Size: 28oz (828ml), Color: Black/Clear, Model Name: Aqua Ridge w/ Dirt Mask,