MSR Dromedary Bags have become my guardian angels, providing me life—yes, literally providing life—on more than 50 expeditions around the world to complete major athletic goals. From first desert crossings in China to climbing huge first ascents on vertical rock walls in Greenland, on every continent and beyond, they have kept me alive. Let me explain: Water. It is the sweet giver of life. This transparent fluid forms the world’s streams, lakes, oceans and rain, and is the major constituent of the fluids of living things. We are water and water is life. And, of course, life is sweet. My body is anywhere from 55% to 78% water, depending on the day or my activity. To function properly I need to drink between one and seven liters of water per…