These are great! Fabric is NOT thin at all, and underwear ISN'T visible. These pants are nice and long, too. Longer than the standard 32" length, so I'm beyond happy about that!!! I finally have pants that are long enough and are very comfortable. I first ordered two pair. They were perfect and identical to each other so I ordered another two more. I love the extra material around the waist. I keep the fold-over band pulled up because it fits better that way for me. I really love these pants. Size Large at $6.95 is absolutely amazing.