The Purity Home 400 Thread Count Ultimate Percale Weave pillow case is one of the best pillowcases I've owned and had the pleasure of sleeping on!  The pillow case is soft, luxurious-feeling, smooth, comfortable and cozy to sleep on.  The cotton feels cool, and I didn't feel hot or sweaty during the night, which meant I didn't wake up multiple times to flip the pillow over to the "cool" side to be comfortable again.  So far after a few washes I haven't seen any damage to the pillow cases, no threads coming loose, and no pilling or bunching of the fabric.  I'd recommend!