Hi<br/><br/>Could you please tell me which of the following (yellow) sentences sounds OK?<br/><br/><b>Which material is your shirt?</b><br/><br/><b>It's pure cotton.</b><br/><br/><b></b><br/><br/><b>What cloth is your shirt?</b><br/><br/><b>It's pure cotton.</b><br/><br/>Thanks,<br/><br/>Tom