Sari and Berger helped erase the deficit in knowledge about the underclothing microclimate:
“A New Dynamic Clothing Model. Part 2: Parameters of the Underclothing Microclimate,” Hayet Sari and Xavier Berger, International Journal of Thermal Sciences, vol. 39, no. 6, June 2000, pp. 684-92. (Thanks to Lisabeth Ng for bringing this to our attention.)