For over 150 years, Simmons has stood for uncompromising American assembled quality and innovation in bedding. The Simmons Down-proof Pillow is filled with a new innovative sustainable fiber. Prime Fiber is a hypoallergenic natural fill specifically crafted from the softest parts of feathers. This durable down like material is soft, smooth and most of all supportive. An amazing fiber nestled inside an extravagant 230 thread count cover is the perfect pairing for an amazing night's sleep. Simmons signature yellow piping completes this stylish look, there will be no mistaking the next time you reach for your new favorite pillow.