Poly/cotton: A Blend Of Polyester And Cotton That Offers Comfort And Durability Male: Tailored Specifically For Men With Options For Looser And Wider Fits Short: Sleeves Start At The Shoulder And Break Before Reaching The Elbow Medium: This Apparel Offers Details That Are A Step Above Our Basic Collection Banded/mandarin: A Short, Unfolded Stand-up Collar That Adds An Extra Detail To The Garment Snap: Ball-and-socket Attached To The Opposite Sides Of The Garment Darts: Folds That Are Sewn Into The Garment To Improve Fit And Shape Double Needle: Stitching Method With Two Lines Sewn Side By Side For Strength