Aaron Finley wrote a review of CW-X Insulator Performx Tights - Men's on March 1, 2014
Familiarity: I've used it once or twice and have initial impressions
Fit: True to size
Just received these CW-X insulator tights and tried them on a run today. Currently, it's late winter in northern Utah - so it was around freezing with some rain/sleet mix. These compression tights fit very comfortably and provided sufficient warmth.
As a size reference: I'm 6'4" ~190lbs with a 33" waist and 34" inseam. I went with XL after consulting the size chart.