16% humidity. Wow that would be nice. Just soak the vests in water. With that low humidity it would be like a/c. Just bring water to pur in the vest and keep em wet. We have the same temps with much higher humidity. I just watch to see how much they play in the yard. During the day they just lay around or get in the water. But as soon as the sun goes down they are all energy. So I will run them at night if I can handle it I know they can. Lots of water and cool down times.
dip em in a river if you can find one, i like the vest waterin idea