The pillows are filled with 100% Canadian sourced hollow siliconized fiber for maximum softness, plus 15 Denier for maximum support and durability. The inserts are washable, hypoallergenic, and created to project a "down type feel" they are the most comfortable synthetic fibres on the market. This ideal mixture makes these pillows perfect for cuddling and snuggling, but they maintain their shape adding the perfect detail to your space. Remember to fluff them up, and enjoy.