X-small: 28-31,  Small: 32-35, Medium: 36-39.  Large: 40-43.  X-Large: 44-47.  2X: 48-51

3X: 52-55

• EXTREME FTM GYNECOMASTIA CHEST FLATTENING CHEST BINDER - Flattens the chest and promotes a masculine looking chest
• 2 POWERFUL MEDICAL GRADE FABRIC LAYERS PROVIDE MAXIMUM COMPRESSION POWER - Feel the strong compression on your chest, belly, sides, upper and lower back
• Neckline is cut low enough to not show through your shirts. Flat stitched around the shoulders for comfort.