Originally Posted by Ivor Fanny:
“horrible thick brown leggings under their dresses- yuck!!
Surely something a bit more flattering could be worn”
They're skating tights. Those over the boot tights don't come in any colours but brown usually though there are several shades adn some are better than others.
They are extra thick and won't go to holes immediately if you fall on the ice as normal tights might.
The over the boot bit is supposed to make for a more elegant and longer leg line but that of course assumes decent toepoint etc and not everyone agrees.
I like the look of white skating boots but when I skate I use over boot tights to hide my manky skates

and so I can wear my skating socks!