MLB Red Sox Double A affiliate Portland Sea Dogs 3930

39THIRTY Fit & Sizing

• Stretch fit, closed back — no adjuster. The band flexes to your head.
• Structured crown with a pre-curved visor
• Snug, streamlined profile that stays put
• Officially licensed

In stock: M/L only. Fits roughly a 22 3/4″ – 23 7/8″ head (57.7 – 60.6 cm), equivalent to fitted sizes 7 1/4 – 7 5/8.

How to measure: wrap a tape around your head where the cap sits — about a half-inch above your eyebrows and ears.

Sizing per New Era (neweracap.com).