I am in the market for a good pair of leg warmers, and recommendations are needed.

Here are the criteria:

-Black

-Does not slip, i.e. stays put where it is tucked under your shorts.

-Kinda breathable; for example, one of favorite piece of gear are my Defeet Wool Kneekers, as they are breathable and do their job very well. And they stay in place. They are also thoughtfully-designed at the back of the knee, thus resulting in no abrasion at that end. It would be nice to find leg warmers along the same line.

what are the leg warmers you have/have had that you liked?

Thanks.