My underarmour sub-zero 3 and sub-zero 4 “leggings” def do not.

If i had to guess id say its the difference in stitching design to give dudes more nut room.

If you live anywhere cold and dont wanna spend the winter months cold, get the underarmour sub-zero “long johns” as i always called them but the design is way more leggings than long johns. They have tiers 1 thru 4 and with tier 4 on i can sit thru a December or January Bills game with no coat, only a jersy over the underarmour top amd the leggings under my jeans and im fuckin sweating when temps are in the teens. Thats 4 hours of tailgating before 3 to 4 hours in the stadium for the game where im basically sitting relatively still compared to hunting or snowboarding, outside, wind howling, and like i said, swamp butt im so warm in those longjohns