These pants are wonderful if you like a snug-but-not-super-tight fit with a substantial fabric. They are not at all see-through--even the white.  They are made out of a sort of french terrycloth, so there's a tiny bit of texture on the inside but they are smooth on the outside.  They are NOT denim.  These said they have "butt-lifting" technology but I didn't experience anything like that in the three pair that I purchased.  They are low-waisted and about 32" in length which works perfectly for my leggy/shortwaisted 5'7" frame.  THEY RUN SMALL.  I couldn't figure out what size to order so I contacted the seller (very nice BTW).  I usually wear an 8-10 and I'm 137 lbs.--she told me to order the XL. I was shocked but I did it and they fit perfectly. And the seller said in her email to me that I could just send them back for a refund if they didn't fit. They wash well but I wouldn't put them in the dryer--too much risk of shrinkage. I've gotten lots of compliments on these skinnies whenever I wear them.