Back the Red Stockings to top the AL East by wearing an official New Era Boston Red Sox League Essential Navy 39THIRTY Stretch Fit Cap. Boasting a classic, curved visor, the fitted, navy crown benefits from Stretch Fit properties for all-day comfort. The iconic Red Sox logo is positioned on the front of the cap.Navy crown with team logo to frontContoured and structured crownStretch Fit propertiesCurved visor97% Cotton and 3% spandex