100% Cotton CALVIN KLEIN HOME: A collection of timeless and versatile modern pieces that will be your go-to bedding accessories, season after season. QUALITY: Constructed of 100% buttery-soft Sateen Weave Cotton with slight sheen; 300-Thread Count SET INCLUDES: King Duvet Cover Measures 107"W X 92"L, King Sham Measures 38"W X 21"L HASSLE FREE UP-KEEP: Machine washable- follow instructions on care label for best results BUTTON CLOSURE: The duvet cover features a button closure for a secure and neat fit. Includes four ties at the inner corners to keep the duvet insert firmly in place.