Thomas Mason for J.Crew tuxedo shirt in blue, lilac color Precision-tailored from Thomas Mason cotton, this shirt is just like his (except you don't have to give it back). One of Europe's oldest and most legendary mills, Thomas Mason has been weaving some of the best shirting since 1796. And just to put that in perspective: George Washington was alive then. Size 6-8 ( no size tag) fits S or M - listing as both. Pit to pit 17” length 27” Two-ply cotton. Long sleeves. Functional buttons at cuffs.