Poor quality. I bought them for cotton satin and they are not soft at all. It is a rough fabric of poor quality that wrinkles like paper.
The plain common pillowcases I have are much better. I slept one night with these and they scratched my face and were warm. In the end, I took them off and they will probably end up in the trash!

Pillowcases of particularly vibrant color that did not fade in the wash. Made of very good quality cotton fabric (referred to as 205-thread count cotton satin weave), although thinner than expected and what I usually buy, which, considering their high price, discourages me from recommending them to others. Time will tell how durable they are in use or if they will quickly develop holes. The size is indeed 50x70 in the classic envelope style. A very positive element is that the corresponding fabric on the inner margin is quite large and well-sewn, allowing the pillow to fit properly inside and stay securely in place.

ATTENTION: The above applies ONLY to the pillowcases in orange color and any other ones provided according to the photo where they are shown worn on 6 pillows, one on top of the other (internal label SB Home).

I was disappointed with the pillowcases in green color (internal label Sbouras Textiles) and any other ones provided according to the photo where they are shown spread out on a bed. They belong to a completely different type (something like an Oxford weave) that, due to the external perimeter margin of 10 points, appear huge and occupy unnecessary space. Additionally, they have poor fit due to the paradoxical sewing style of the envelope, resulting in them deteriorating in use and the pillows constantly slipping out.

Since the pillowcases have the exact same name, I believe that this is a significant difference that should be clearly clarified to the buyer, rather than implied through a different photo.