Pinzon Hypoallergenic Overfilled Microplush Mattress Topper - California King 100% Polyester Top; 100% Olefin Bottom; 100% Polyester Filling; 90% Polyester/10% Spandex Sides Imported Mattress pad sewn with soft microplush fabric and overfilled for extra comfort Overfilled with loft-retaining, polyester filling for extra comfort End-to-end box stitched with mitered border to prevent fill from shifting Deep pockets fit mattresses up to 18 inches deep and allow the mattress pad to double as a mattress protector for all-in-one convenience California King pad measures 72 x 84 inches Made in OEKO-TEX Standard 100 factory, an independent certification system that ensures textiles meet high safety and environmental standards.