After many years of buying the waffle looking thermals for my husband, I finally found these great looking bottoms!  They wash and dry wonderfully, with like colors.(Do not wash+dry with light colors!)  Label states "Do not use fabric softener." Ok! then. These are as warm as the regular thermals, but do not stretch out as much.  He likes the smooth cotton. Crotch is longer than it needs to be for men, though.  Size runs small.  Bought a Large for a tall man 6'1" + 168 lbs.