These are more satin than silk. I'm glad I bought this set since I love satin sheets, but am a bit disappointed that they're so fragile. My earring brushed against the pillow case and a line appeared, damaging the design. I've never had that happen with any satin or sateen sheets I own. The fabric "pulls" easily. It's a pretty set, a very smooth feel but the thread is very delicate. The pads on my dog's feet (very small dogs) damaged them after walking on them once and I have very small dogs.
These felt great, but if you have feet that might be dry, if they are not perfectly, perfectly smooth, it ruined the sheets immediately, and looks terrible, and moving your legs were uncomfortable, had to were socks to bed, and my feet aren't THAT bad! I never contacted the company, because, maybe it was just us.