These pillowcases are wonderful!  With a 300 thread count percale organic cotton material they are soft, cool and crisp.  And as they get washed they will get even softer. They are lightweight and breathable so you do not get all hot and sweaty sleeping on them. The organic cotton is free of pesticides, dyes and carcinogenic chemicals, not something I really thought about with a pillowcase but this is a good thing. They are a nice ivory color and king sized to fit my king size pillows well.  Definitely recommend and very glad I chose these.