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      Men's Isaac Guerendo San Francisco 49ers Game Day Jersey

      $58.99 USD
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      Men's Isaac Guerendo San Francisco 49ers Game Day Jersey

      The San Francisco 49ers identity does not reset with the calendar. This jersey keeps it close, whether you are in the stands or on the sofa. At a glance: San Francisco 49ers jersey, game day finish, made for men, 2026.

      What you get

      • Mesh panels for ventilation
      • Recycled Polyester knit with a flat, matte finish

      The Game Day build

      The Game Day build is the matchday-facing tier of the range: a performance-weight knit, a close athletic cut, and badge and trim work finished to match what is worn for kick-off.

      Fabric that behaves

      The knit is spun for movement: light in the hand, breathable across the back, and quick to dry after a long afternoon in the sun.

      Sizing across the family

      Adult, women's and youth cuts are graded separately, so the same design fits a grown supporter and a younger one properly rather than proportionally.

      Fan version vs on-field version

      • Fan version: softer knit, roomier fit, lower price.
      • On-field version: closer cut, firmer fabric, premium price.
      • Team colours and crest are the same on both.

      Version, sizing and what you are buying

      What you are buying is the game day cut, which is what most supporters actually want. Same look as the on-field shirt, softer hand-feel, roomier fit, and easier to live in week to week.

      Sizes here follow a standard athletic grade for supporters. Compare the chest measurement on the size guide rather than your usual high-street letter.

      Specifications

      Season2026
      TeamSan Francisco 49ers
      VersionGame Day cut
      AudienceMen's
      PlayerIsaac Guerendo
      FitLoose cut
      MaterialRecycled Polyester
      CareCold machine wash, inside out. Tumble dry low.
      Print and finishMesh panels for ventilation; heat-sealed detail that sits flat on the fabric
      PersonalisationNot offered on this listing
      SleeveShort sleeve
      NecklineRibbed crew neck
      LeagueNFL

      Frequently asked questions

      How does this cut compare to the on-field shirt?

      It is a premium supporter cut.

      How long will it last?

      Several seasons with normal wear.

      A size I want is not shown - can I still order it?

      The size selector shows everything we currently hold.

      Is it heavy or thick?

      No.

      Ordering with confidence

      • Secure encrypted checkout - card details are never stored.
      • Material and stitching checked before dispatch.

      Related pages

      Sizes move fastest at the start of a season - secure yours now.
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      Sustainability

      WHAT REALLY MAKES OUR THREADS UNBEATABLE?​​

      We don’t chase thread counts. Not because they don’t matter—but because true quality goes far beyond threads per square inch. Here’s what we prioritize instead:
      • ​Finest Organic Materials: We start with the purest, ethically sourced organic cotton, silk, or linen—fibers chosen for their strength, softness, and ability to age gracefully. No shortcuts, no compromises.
      • ​Meticulous Weaving: Every thread is woven with care, using time-honored techniques that preserve the integrity of the fabric. No rough edges, no fraying—just smooth, durable construction.
      • ​Gentle Finishing: Harsh chemicals? Never. We use plant-based dyes, natural softeners, and low-impact processes to finish our threads, ensuring they stay breathable, hypoallergenic, and kind to your skin.
      We don’t chase thread counts. Not because they don’t matter—but because true quality goes far beyond threads per square inch. Here’s what we prioritize instead:
      • ​Finest Organic Materials: We start with the purest, ethically sourced organic cotton, silk, or linen—fibers chosen for their strength, softness, and ability to age gracefully. No shortcuts, no compromises.
      • ​Meticulous Weaving: Every thread is woven with care, using time-honored techniques that preserve the integrity of the fabric. No rough edges, no fraying—just smooth, durable construction.
      • ​Gentle Finishing: Harsh chemicals? Never. We use plant-based dyes, natural softeners, and low-impact processes to finish our threads, ensuring they stay breathable, hypoallergenic, and kind to your skin.

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