-Questions about sizing? Check here Size Chart - These run a bit large...like a golf polo - Model has on an Large in this polo and wears a Large in other Vol Trad Polos, he wears an XL in Vol Trad Short/Long Sleeve Tees - Lightweight Drywick fabric moisture wicking technology available in White featuring Checkerboard Plackets. Made by our friends in Taiwan. -100% Polyester