If by out west you mean the deserts of West Texas, New Mexico, Arizona, Nevada etc. then invest in one of the evaporative vests that are on the market. That coupled with any good mesh jacket and you will be set. I use an Olympia because it comes in Silver. Ever sit at the railroad crossing in Delta Utah when it is 107 with a black jacket and you know why I want a light colored jacket. Hello BMW not everyone wants to wear Harley BLACK. Make your gear in light, visible colors. Sorry off track. Also consider using a Camelbak(sp) hydration system, it is a convenient way to carry water and makes it easy to get to. No I don't wear it on my back, I strap it to the backrest. Consider mesh pants as well. Take breaks often and if you feel thirsty you are behind in your water supply intake. Stop, take a break,hopefully in the shade and drink water or Gatorade until you think you'll float and then you are half way there. I carry a heavy duty zip lock bag that allows me to refresh the evap vest during a break. Fold up the vest, insert in bag and pour in enough water to rehydrate the vest. Remove vest, wring out, with water back into the bag and back on the road. Just my $.02 worth.