Under Armor Pants

[refnrev]

Now that it's playoff time and the wind is biting what about the long under armor compression pants? I've seen the girls wearing them in the spring, but a few of the boys are starting to wear them,too. Legal or illegal?

[Nevadaref]

USSF's Ask a Ref column provides:

Question:
I have noticed in Europe on cold weather days that professional players have been wearing sliding pants or leggings that cover the whole leg and go under the socks. I was under the impression that sliding pants had to be similar or same in color as the shorts and could not extend beyond the top of the knee. Has this changed?
Answer (March 17, 2005):
The garb you describe is for the safety of the players. The "panty hose"--probably Lycra tights--under the shorts and socks are allowed because of the extreme weather.