Flex Collar: Stretches up to half an inch for expandable comfort. Non-Iron Fabric: Resists wrinkles to keep you looking crisp all day; easy care, no ironing necessary. Big Fit: Cut with extra room all around, this comfortable fit features more relaxed armholes and sleeve openings. Button-Down Collar: More relaxed & casual collar; appears neat with or without neckwear so you can dress it up or down. Adjustable Cuff: Two button positions allow for a more customized, improved fit. Chest Pocket: Classic design holds all your essentials. For regular fit, search style number 1123188