Good stuff. I&#x27;m interested to see data on other cotton garments, particularly buttondown shirts.<p>Cotton is just a lousy fiber. On the other hand, wool is a strong and resilient fiber. It also never needs to be washed provided it isn&#x27;t stained.<p>My wife knit a wool sweater for a close friend of mine who spent 6 months as a bosun on the tallship the Lady Washington (the Interceptor in the Pirates of the Caribbean). Fresh water is scarce on a tallship so showers were infrequent. He came home during Christmas and I smelled the sweater which he claims he never washed and it smelled fresh. Surprisingly, it also kept him warm and dry on the open ocean. I later learned that Irish fishermen have been wearing wool sweaters at sea for generations.<p>Wool is the fiber of the past and future.