Ah fuck I just bought these @ $33 last week and they arrive today. I'll edit in my first impressions when they get here.

Edit:

• It's 100% Polyester for those confused by the description
• I'm 6'0 150 and wear 30x30 jeans, ordered a small and it fits exactly what I was looking for, thighs are spacious.
• They'll work nice for lifting but I don't know if I'd run in these.
• Compared to my pair of Champion training pants, these probably won't help much in the midwest winters. OP said they're fairly warm though so maybe that's saying more about the thickness of the Champion pair.
• Ankle zip is pretty well hidden by the stripes and actually rides up to a couple inches below the knee.
• Zip pockets are enough for my phone and then some.