• Seattle Mariners 50th Anniversary MLB Season Jersey Sleeve Patch
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WearSparks

Seattle Mariners 50th Anniversary MLB Season Jersey Sleeve Patch Baseball Jersey

Seattle Mariners 50th Anniversary MLB Season Jersey Sleeve Patch Baseball Jersey

$49.94 USD
$79.94 USD $49.94 USD
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Authentic-Style Baseball Jersey – Printed On Demand

Ball players know: the jersey matters. Ours is cut from breathable polyester mesh, reinforced at every seam, and printed so the colors pop under stadium lights.

📸 Don’t let the mockup fool you – this design prints on all 4 jersey styles: Men’s Cool Base, Men’s Flex Base, Women’s, and Youth. Your pick, your fit, ready to ship today.

Why This Stands Out

  • 🎨 Built to Last – Fade-resistant graphics that stay vibrant from opening day to the playoffs.
  • 🧵 Flex Base Advantage – Add 12% spandex on Flex Base variants for mobility the replica jerseys can’t match.
  • 👕 Reinforced Seams – Double-stitched shoulders, side vents, and hem. Built to survive slides, catches, and the wash.
  • ⚾ Premium Construction – Industry-standard jersey-grade polyester with pro-level finishing details.

Material & Construction

  • Men’s Cool Base (Replica): 100% polyester mesh, ~220g – classic loose replica fit, tolerance ±1.5 in.
  • Men’s Flex Base (Authentic): 88% polyester / 12% spandex, ~240g – performance fit with stretch, tolerance ±1.5 in.
  • Women’s Fit: 100% polyester mesh, ≈200g, tailored female cut. Youth (Boys): 100% polyester mesh, ≈180g, sizes S–XL (ages 6–20).
  • Note: Flex Base runs more athletic than Cool Base. If you prefer a looser fit, stick with Cool Base or size up on Flex Base.

Complete Size Chart

Compare your measurements to the charts below. Remember – jerseys are built roomy, so size up if you’re on the fence.

Size Guide — Baseball. All measurements in inches. If between sizes, size up for the classic looser jersey fit.

Men · Cool Base (Replica · ±1.5 in)

Size Chest (in) Waist (in) Length (in)
S 41–43 40–42 28–29
M 44–45 43–44 29.5–30
L 46–47 45–46 30.5–31
XL 48–49 47–48 31.5–32
2XL 50–53 49–52 32.5–33
3XL 54–56 53–55 33.5–34
4XL 58–60 56–58 34.5–35

Men · Flex Base (Authentic · ±1.5 in)

Size Chest (in) Waist (in) Length (in)
S 40–42 39–41 29–30
M 43–44 42–43 30.5–31
L 45–46 44–45 31.5–32
XL 47–49 46–47 32.5–33
2XL 50–53 48–51 33.5–34
3XL 53–55 52–53 34.5–35
4XL 57–59 54–56 35.5–36

Women (±1.2 in)

Size Chest (in) Waist (in) Length (in)
S 34–35 26–27 22–23.5
M 36–37 28–29 23.5–24.5
L 38–40 30–32 24.5–25.5
XL 41.5–42.5 33.5–35.5 25.5–26.5
2XL 43–45 36–38 26.5–27.5

Youth (Boys) (±1.2 in)

Size Age Chest (in) Length (in)
S 6–8 32–33 22–23
M 10–12 34–35 24–25
L 14–16 36–37 26–27
XL 18–20 38–40 28–29

How to measure: Chest — across fullest part relaxed · Waist — ~1 inch above navel · Length — shoulder seam to hem.

Shipping & Delivery

  • ✅ In Stock — Ships: within 1–2 business days.
  • 📦 US Delivery: 3–7 business days.
  • ⚡ US Express Option: 2–4 business days.
  • 🌍 Rest of World: 1–3 weeks.
  • ⚠️ Popular designs: Occasionally restocking takes 1–2 extra days of production before we can ship.

This jersey ships fast from our warehouse. For best-sellers that sell out quickly, production can add 1–2 extra business days. Review the size chart for your variant (Cool Base, Flex Base, Women’s, or Youth) before checkout. Size exchanges accepted within 14 days.

⚾ Gear up at WearSparks.com – quality you can count on.

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