Ever have a certain product that you use just about every day and can’t be without? Well for me, this is it. Geigerrig Hydration backpacks are simply one of a kind and stand-alone from the rest of the competition! Geigerrig Hydration packs are a total game changer! What makes these hydration packs different from others is its pressurized system to squirt out water wherever needed. All you do is pump it (it comes with a easy to reach hand pump) to create the pressure & you're ready to drink or spray it. They are one of my favorite things I own for OCR’s.