This authentic Nike NFL on-field game jersey features the San Francisco 49ers' alternate black uniform design for quarterback Brandon Purdy (#13). Constructed with Nike’s Vapor Untouchable technology, it offers lightweight breathability and moisture-wicking performance for optimal on-field comfort. The jersey showcases bold red numerals (front and back), '49ERS' team name in red above the front number, and 'PURDY' in red across the back shoulders. Signature details include three red stripes on each sleeve, red shoulder accents, yellow Nike Swoosh logos on both sleeves, and official NFL shield at the V-neck collar. Tagged as 'M' size with 'ON FIELD' designation, it includes stitched twill numbering and lettering for durability and premium authenticity. Ideal for fans seeking game-accurate replica apparel, this jersey blends professional athletic functionality with bold streetwear appeal—perfect for gameday, casual wear, or collector display. The high-contrast black-red-yellow color scheme reflects the 49ers’ modern identity while maintaining classic team heritage.