GI Tac reviews this Kangaroo hydration pack from Source, a company well known for personal hydration solutions... "Source has made a great 1L hydration pack for anyone looking for a smaller water carrier that won't get in your way. Because the pack is smaller, shooters can choose to mount it higher on their backs, allowing for easier access to vehicles. Plus, with polyethylene construction, it makes the bladder very easy to clean and ensures that no additional odors keep. Be sure to check it out on our website!"