Source is a military gear manufacturer from Israel. The company has become known especially for their hydration bladders, because the bladders truly withstand war and wear, and on top of all they’re not expensive! Helix is Source’s own bite valve, which can replace the standard Storm valve. The Source QMT technology makes the replacing easy, just remove the old valve and put the new one in with the quick detach. The Helix can also be locked, so that it does not leak when getting crushed. In addition, the valve has a protective cap.
