These are great - high quality materials and craftsmanship, and sexy too.  They have a little more coverage than your average too-skimpy underwear which tends to not stay put, but at the same time because of the lace and string part they still look sexy.  My one complaint is that I wish they made these in a size extra small.  I have the small, and it's just a little bit too big.  It fits OK right out of the dryer but as I wear them they stretch out a bit.  I have 35" hips and a skinny build.