Pair the Nathan 1.8L Hydration Bladder with your Nathan running vest to stay hydrated on your runs and adventures. For peak performance whether you’re trail running, cycling or paddle boarding, this BPA-free hydration bladder has a sleek hourglass design and an internal baffle to reduce sloshing. Plus, quick-release hoses make it convenient to clean and easy to set up in your favorite Nathan race vest. Keep your whistle wet and adventure for longer with the Nathan 1.8L Hydration Bladder.