Oh baby, 100% cotton. Nature's moisture-wicking fabric, you won't believe the comfort this polo brings. We created this in our TradeMark Fit for a modern, slimmer silhouette so go ahead and plan big and show up in the SMOOTHIE MACHINE. - Tailored Fit - Lightweight, moisture-dispersing fabric - Wrinkle resistant and quick dry - Signature collar stay technology - Model: 6'0", 180 lb, shown wearing size M - 100% Cotton