Material: 100% organic cotton flannelSTANDARD 100 by OEKO-TEX® certificate 12275CIT; made without the use of harmful chemicals or pesticides.Set includes duvet cover and shams (1 standard sham included with twin, 2 standard shams included with full/queen, 2 king shams included with king/cal king)Substantial 5.3 ounces per square yardDuvet cover includes button closure and corner ties to keep comforter in placeBrushed for extra softnessFitted sheet fits mattresses up to 16" deepShams have back envelope closureComplete your bedding refresh with new pillows and duvet insertsMade in PortugalOrganicBreathableCozy & comfortable Luxury Organic Flannel Duvet Cover Set