Here's a wool (or wool blend) long underwear set from the 1940s. These are US military issue. The top is long sleeve and pullover. We found these in
Wool Long Underwear Vintage
Military Long Johns
Military long underwear - Gem
MWB MAGAZINE OCTOBER ISSUE 225 by fashion buyers Ltd - Issuu
40s Pre WW2 Wool Long Underwear LaceUp Button Fly Long Johns Standard Mills M
40s pre ww2 wool - Gem
Uniforms, World War II (1939-1945), Militaria, Collectables - PicClick UK
Vintage Wool Long Underwear
WWII Military Long Johns – FORESTBOUND
100% Wool Vintage Clothing for Men for sale
Everyday 1940s 100% Wool Vintage Clothing, Shoes & Accessories for sale
VINTAGE HERREN JAPANISCH Gewebte Seide Lange Kimono & Haori Jacke Ensemble Set, Shojo EUR 87,74 - PicClick DE
Vintage 1950s 50s French army deadstock long johns thermal knit underwear button fly lacing 28 waist