50% cotton, 50% polyester; Oxford is 47% cotton; 53% polyester; welt-knit collar; SpotShield? stain-resistant treatment; back neck tape for a clean, comfortable finish ; tagless label; double-needle stitched bottom hem; two-button placket with bottom box stitch reinforcement; pearlized buttons with durable cross-stitching; seamless body; 1x1 rib cuffs