Men’s dress shirts come with one of three dress shirt back pleat options: no pleats, rear side pleats, or the center box pleat.
No Back Pleats
No back pleats on the back of the shirt makes for a clean, minimal look. If you’re going for a more modern, slim look that is fitted through the chest and midsection then this will be the best choice, visually.
Rear Side Pleats
Rear side pleats, also sometimes called “knife pleats,” are placed just below the yoke, out towards the ends of the shoulders. Each pleat is 0.5” wide. Selecting rear side pleats will add a total of 2″ of additional fabric to the upper back of the shirt while keeping the yoke and chest width the same. Rear side pleats are a great option if you want to increase range of motion when reaching forward.
Center Box Pleat
Locker Loop Box Pleat
Western Yoke and Back Pleats