Maxchill Water Bottle.

• Position: Brief Article

Harvey Mamich, an engineer at Lockheed Martin and avid mountain biker, wanted a better way to keep water cold when hitting the trail on hot days. After five years of perseverance, his brainchild, the Maxchill water bottle, hit retail shelves nationwide in 1999. It's sheathed in water-absorbent foam, cooling the water inside the bottle through evaporation. This phenomenon, known as the latent heat of vaporization, is the same reason a warm breeze feels cool after a swim. The effect produces seven times the cooling energy of ice and has been...