Woven from 100% European flax Set includes duvet cover and shams (1 standard sham included in twin size, 2 standard shams included with full/queen, 2 king shams included with king/cal king) Duvet includes button closure and corner ties to keep comforter in place Interior ties to keep comforter in place Envelope closure on shams Solid/Chambray Pattern: STANDARD 100 by OEKO-TEX® certificate 11-54954; made without the use of harmful chemicals or pesticides. Striped/Gingham Pattern: STANDARD 100 by OEKO-TEX® certificate BEHO 078808; made without the use of harmful chemicals or pesticides New Without Tags