Originally Posted by Idahombre
Not much is gonna get solved here. Go to the source. I have a Noob question to anyone who has Dakar experience or other similar races. I've noticed that usually the racers in Dakar are wearing these big heavy jackets with what I guess is body armor underneath. Isn't that hot? Wouldn't a roost protector with elbow pads me more comfy? My guess answer to my question is, they don't want to get dehydrated with their sweat evaporating. So they create a little micro climate under the big jacket and cool off with vents in the jacket. Just a guess. Is it better to run a jacket in a race like the Mexican 1000, with possible upper 90 degree temps? Thanks.
Both east coast guys I chased for last year wore cordura type jackets and swore by it. I've not done it like that but I can see the benefits and its been explained to me that it exactly as you've answered. Which I believe is KLIM's explanation also.