Brand: Reebok, as indicated by the NFL Equipment Authentic woven neck label featuring the NFL shield logo and RBK branding.

Organization: National Football League (NFL); Team: San Francisco 49ers; Sport: Football.

Product: Mens football jersey designed as San Francisco 49ers fan apparel suitable for game day wear, casual outfits, or display in a sports collection.

Color: Primary red body, collar, and sleeves with white tackle-twill numerals outlined in gold and black, white sleeve striping, and multicolor San Francisco 49ers SF logo ovals on each sleeve.

Size: Mens 52, as shown on both the interior size label and the front hem jock tag, intended for adult mens sizing.

Material and construction: Lightweight athletic jersey construction with breathable mesh fabric on the front and back panels, solid side panels, a ribbed V-neck collar, reinforced shoulder seams, and short sleeves for a traditional on-field style silhouette.

Front design details: Center chest displays a large white number 71 with gold and black outline, the NFL Equipment shield logo is placed at the base of the V-neck, and each shoulder carries smaller 71 numerals along with white Reebok vector logo graphics near the sleeve seams.

Back design details: Upper back features an ALLEN nameplate in white tackle-twill block lettering, set above a large white 71 numeral with gold and black outline matching the front for a cohesive team look.

Branding and label details: Interior neck taping repeats NFL Equipment branding around the collar, while the lower left front hem jock tag includes the NFL Equipment shield, RBK logo, NFL Players logo, a blank name field, and printed size 52 along with text noting that the jersey is engineered to the specifications of the National Football League.

Features: San Francisco 49ers mens red Reebok NFL Equipment Authentic football jersey with ALLEN nameplate and 71 numerals, breathable mesh body, ribbed V-neck collar, team SF logo ovals and striping on both sleeves, and Reebok shoulder logo details for an official team-inspired design.

Special notes: Jersey is photographed on a neutral backdrop for clarity; any rulers or other measuring tools visible in images are included only to show scale and are not part of the listing, and after photography the jersey is stored folded inside a clear plastic storage bag with a numeric inventory label sticker for organization.