I got the king sized sheet set in gray. The sheets are 100 cotton, but hey have a slight sateen sheen to them. The fitted sheet has a high quality elastic band and a very deep pocket. I have had issues with fitted sheets fitting my slightly-taller mattress in the past but you could have a very thick mattress pad and these would still fit! Overall, they are not quite as soft as I usually like but I have a feeling after a few washes they will soften up.