These are nice quality & I know they'll be warm, as the fabric seems identical to 2 other brands I have (also from Amazon).  The color is accurate to what is pictured on the screen.  However, of the 4 brands I've tried from Amazon, Thermajane runs larger than the others.  I ordered a Large and based my decision on the other reviews and customer questions/answers, because the seller didn't post a Size Chart.  It baffles me why they wouldn't provide the Size Chart to cut down on the number of returns, especially since the Chart is printed on the back of the product package!!!  To help out other shoppers, I'm including a photo of the Size Chart of the package that I'm about to send back.  I ordered a Large.  I'm 5''3" and 150lbs.  Overall, the Large is TOO Large.  Fits my big bosom but there is still more stretch room, while the bottoms are baggy and loose on my fanny and thighs.  I'm top-heavy.  The item is proportioned for slightly bottom-heavy.  I'd prefer that the butt FIT and top be more snug, instead of baggy butt and top snug.