Amaaaaaaazing West Elm duvet cover in light heather gray. It’s so soft! Product Details: Front: 57% cotton, 43% polyester. Back: 100% cotton. By choosing our cotton products, you’re supporting our investment in Better Cotton’s mission. This product is sourced via mass balance and therefore may not contain Better Cotton. Learn more. STANDARD 100 by OEKO-TEX® Certified: tested for 400+ harmful substances. 21.HUS.86232 HOHENSTEIN HTTI Duvet Cover: Button closure; four interior corner ties keep it in place. Shams: Envelope closure. Made in a Fair Trade Certified™ facility, benefiting the workers who make it. Imported.