Brown glen plaid on a lightweight cotton (not flannel). Please see photos for measurements. Happy to answer any questions. Thanks for looking!

*Design DNA: The Westerton model was a core part of Ralph Lauren's high end casual dress shirt line. It was specifically patterned to showcase traditional British haberdashery and classic Ivy League patterns-most notably vertical multi-stripes, micro-checks, and glen plaids, like this one. The *classic fit* means it has slightly wider shoulders, a relaxed chest, and a longer hem meant to stay tucked in easily.