These sheets are beautiful!  I purchased the grey.  I was hesitant at first due to the 300 thread count but as they have a sateen finish I went ahead and purchased them.  The packaging states that they are made with 100% extra long staple cotton and the two together make these amazingly soft.  A huge benefit is that they have extra deep pockets that will accommodate mattresses up to 22" deep.  My bed is adjustable and I'm hoping this will keep the bottom sheet from slipping.  Now I'm just waiting for the new comforter and throw pillows to arrive so I can put it all together.  Very happy with this purchase.