Brand: New Era.

Team: Boston Red Sox professional baseball team from Major League Baseball (MLB).

Product: Mens fitted baseball-style hat cap from the New Era 59FIFTY Authentic Collection on-field headwear line.

Design: Structured six-panel crown with embroidered ventilation eyelets, a matching navy fabric-covered top button, and a flat visor with multiple rows of stitching in the classic 59FIFTY fitted silhouette.

Color: Dark navy blue crown and bill with tonal stitching and underbill, accented by red and white embroidery.

Front graphics: Front panels feature a large raised embroidered red Boston "B" logo outlined in white centered above the visor.

Rear details: Back of the cap displays an embroidered MLB batterman logo patch in white, red, and navy thread positioned at the lower edge.

Interior details: Inside crown includes black 59FIFTY-branded seam taping reading THE OFFICIAL ON-FIELD CAP OF MLB, a dark moisture-absorbing sweatband, and a matching navy underside of the visor.

Labels: Interior woven Authentic Collection PERFORMANCE HEADWEAR OFFICIAL ON-FIELD CAP patch on the sweatband, separate New Era and COOL BASE label, printed size tag marked 7 1/4 57.7 CM, and fabric tag noting MADE IN U.S.A. 100% POLYESTER in multiple languages.

Size: Mens fitted size 7 1/4 (57.7 cm) per interior size label.

Materials and origin: 100% polyester construction made in the United States according to the interior fabric tag.

Style and identifiers: New Era 59FIFTY Boston Red Sox Authentic Collection Cool Base on-field fitted hat cap with classic navy team colorway, raised front B logo, and MLB batterman rear patch.

Features: Structured six-panel crown, embroidered eyelets, matching fabric-covered top button, flat bill with multiple rows of stitching, fitted Cool Base performance polyester fabrication, interior Authentic Collection and New Era branding, MLB batterman logo, and official on-field 59FIFTY silhouette for Boston Red Sox and MLB headwear fans.