I hope it didn't come across as knocking them. I would think that there is some merit in them by many people's experience. I just don't think that they are a carte blanche ticket to ignore wind, and there are a lot of variables involved. The scenario I described just is an example of a major glitch that I believe I have a solution for--but even the lightweight 'base layers' haven't solved. They are very hot during those temps as well. I bought a brand name that I won't disclose pair of long underwear type scent removal clothes and they are not only hot, but they simply don't work.I can actually smell myself when climbing a tree---and for all of the wiseguys, I do shower, use the 'scent free' deodarants, and take every precaution I can--including using scent killer sprays. I think that the coller months and conditions these clothes would be effective--hot---not in my experience.