Originally Posted by
mihlbach
Well, if liquids just fall right off it, wicking would be totally impaired, unless the fibers let water through one direction and not the other. I watch that video and imagine the sweat droplets trickling down my body eventually ending up in my shoes.
That's an old Marine Corps Drill Instructor trick. They Scotch-Guard the inside of their uniforms so that the sweat never shows through, giving the recruits the impression that they are superhuman. Little do they know that the DI's shoes and socks are soaking wet.