Better Down Damask High Quality 100% Cotton Better Pillow Protector 300 Tc. (King) 100% Pure Cotton with 300 Thread Count, Striped shell Hypoallergenic - Perfect for down feather pillows - Blocks dust mites, allergens, bacteria, mildew and mold Zippered Pillow Case Covers - Machine wash & dry King size- 20"x36" inches