Poland has a rich history of goose farming that goes back many hundreds of years. It is known for having some of the finest domestic white goose down in the world. This down is one of the best that Poland has to offer. The Ziegler pillow is an amazing luxury pillow. It is responsive and supportive with the perfect amount of cushy resistance. This pillow will have you blissfully asleep in no time. The 300TC SoLoft™ German cotton twill has no chemical finishes; just pure natural cotton that is specially woven to make it permanently down proof and dust mite proof even after repeated washings. We recommend washing these pillows in pairs, and only when soiled. A good quality machine washable pillow protector is strongly recommended. Down Specifications 850 loft Polish white goose down ZURGUARD® certified hypoallergenic Certified SUPERWASH™ for machine washing Cover Specifications 300 Thread Count SoLoft™ Fabric imported from Germany Piped with white satin cording Standard 100 by OEKO-TEX® - Class 1