100% cotton premium quality cotton sateen finish secure button closure smooth hand feel treat yourself to an instant refresh with the luxuriously soft cotton sateen duvet cover and pillowcase set, providing the cozy ambiance your bedroom truly deserves'. '.strtoupper('c')rafted from high quality cotton, this duvet has a smooth hand feel and is easy to care being machine washable'. '.strtoupper('f')inished with a secure button closure to secure the duvet cover around the duvet for a comfortable sleep'. '.strtoupper('t')his product is oeko tex made in green certified, meaning it was produced in oeko tex s te p certified factories verifying environmental, social, and chemical standards in the facility'. '.strtoupper('i')t has also been certified to oeko tex standard 100, the original safety standard for everyday confidence'. '.strtoupper('t')o offer full visibility, the production stages throughout the supply chain can be traced.