CWX Performance Tights - watch your calves size.
These are just a great example of technology for high end gear! The compression is great and you can feel great support for your muscles on short and long runs.
I do have to say I had some issues with my calves. I am 5'2" and 120 lbs, with slim/average thighs but big calves. I got the size small, the support to my knees and thighs is great, but I still feel my calves too tight after a while using them. I dont think the M will work for me, so I decided to keep them.