Salomon Hydro 45 Iron Bottle Belt Hydro 45 Belt - 45 degrees of hydration for 360 degrees of fun 4D bottle holder - instinctive, quick and easy access to your bottle for hydration Bottle holder is 45 degrees inclined - to get easier and quicker access to the bottle while running Specific shape of the top part of the bottle holder - acts as a guide to put the bottle back instinctively Adjustable belt - adjustable for best containment of the bag on the hips