I'm looking for a pair of tights for commuting during this glorious English summer 
At the moment I'm using some SportsDirect ones and they're pretty rubbish: they don't fit properly, and if they get wet in the morning they're usually still damp for the ride home.
So I'm after some tights that are:
Any recommendations?

At the moment I'm using some SportsDirect ones and they're pretty rubbish: they don't fit properly, and if they get wet in the morning they're usually still damp for the ride home.
So I'm after some tights that are:
- cheap
- as lightweight as possible (I'd rather arrive at work too cold than too hot)
- either waterproof or quick-drying.
Any recommendations?