Bed Alter 600 Thread Count Duvet Cover Zipper & Corner Ties 100% Egyptian Cotton Luxurious & Hypoallergenic (California King/King, White) PRODUCT DIMENSIONS - 1 Duvet Cover (102"X94"). COMFORTABLE & DURABLE - Durable lightweight fabric for ultimate comfort, These 100% Egyptian Cotton Reversible Duvet Covers are sure to leave you mesmerized with its unique softness and feel.