AZAR MAN TUXEDO WING TIP FRENCH CUFF DRESS SHIRT (Studs, Cuff Links, And Bow Tie Included As Shown) Model Wearing Size Medium 15/15.5. Elegant, slim / tailored fit formal shirt by AZAR in high-quality cotton with a wing collar, French cuffs, and versatile removable cuff links. Slim / Tailored Spread collar with included collar stays French cuffs Cuff links included as shown Rounded hem. How to Measure Your Neck Size: 1. Wrap the measuring tape around the neck, beginning at the Adam's apple. 2. Come fully around the neck, leaving no dangling space in between the neck and the tape. 3. Note the measured number. This is the actual neck size. The dress shirt size will be half an inch bigger. For example, if you measure your neck to be exactly 15 inches (38 cm) around, then your dress shirt size will be 15_ inches (39,5 cm). Your neck size should range between about 14 – 19 inches (35,5 – 48,3 cm).