On this trip I’m taking it’s going to be the middle of the summer. Last year at the same time, I did a similar trip south. Did the BRP and the Skyline Drive in full. Anyway, it hit the upper 90’s on the way down, especially when I hit 81. When I got to my hotel in Front Royal, my vision was fading and I think I had a touch of heat stroke. What’s the general opinion out here on an item like this? What size also? They’re not expensive, but I don’t want to be bogged down like a backpack either. Thanks for any input.