Mizuno's "Breath Thermopile Socks", which I have been using for many years, are warm and do not get stuffy! It is a gem that can also be used as a countermeasure against
Amazon.com: Mizuno Running Breath Thermo Running Crew Socks, Dark Slate-Black, Medium : Clothing, Shoes & Jewelry
Mizuno Volleyball Runbird® Crew Socks : Target
Mizuno BT Active Socks Black | Runnerinn
M Breath Thermo Vest - RUNdetroit
iRun.ca - Mizuno Breath Thermo® Review (Home to Canada's running community and iRun magazine)