I LOVE these tights! They're smooth, a good thickness, and definitely opaque. I was nervous they wouldn't be warm enough on a particularly cold day, but they really did well. No sagging or cutting me in half, either. I bought these when I was about 225 (I'm 5'6"), and I'm almost 25 lbs lighter now, and they still look and wear great. I normally hate hand-washing things, but I'm happy to do that with these. Looking forward to buying more!