Polo Ralph Lauren:
Slim Fit Cotton 1x1 Ribbed Knit Long Johns
1x1 ribbed long john pants without pockets
Functional fly front
Approx. 29 inch inseam
100% cotton knit
Great fabric, but it shrank
Yes, I did not take shrinkage into account when selecting the size. The fit is tight to begin with, and the shrinking made it almost too tight to weard (according to the man I got this for).