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Boston Red Sox #28 J. D. Martinez Style 1 Baseball Jersey

Boston Red Sox #28 J. D. Martinez Style 1 Baseball Jersey

Regular price $49.94 USD
Regular price $79.94 USD Sale price $49.94 USD
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Premium Baseball Jersey – Cool Base & Flex Base

Whether you’re a weekend league hitter or a lifelong fan, this jersey delivers. Athletic fit, moisture-wicking mesh, and crisp graphics that don’t peel after the first wash.

📸 The mockup shows one style – but this design ships on Men’s Cool Base, Men’s Flex Base, Women’s, and Youth (Boys). Pick your variant, size, and we’ll make it just for you.

Built for the Game

  • 🎨 Pro-Level Finish – Graphics applied with pressure and heat so they become part of the fabric – no cracking, no peeling.
  • 🧵 Moisture-Wicking Mesh – Breathable polyester mesh pulls sweat away fast. Stay cool from first pitch to final out.
  • 👕 Cool Base vs Flex Base – Cool Base for that traditional replica look; Flex Base for the authentic, moisture-locked athletic fit.
  • Season After Season – Built to hold up to game days, laundry cycles, and years of wear.

Build Specs

  • Men’s Cool Base (Replica): 100% polyester mesh, ~220g – classic loose replica fit, tolerance ±1.5 in.
  • Flex Base (Authentic): 88/12 polyester/spandex at ~240g. Athletic stretch fit, moisture-locked performance feel.
  • 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.

Find Your Perfect Fit

Use the detailed charts below to find your size across Cool Base, Flex Base, Women’s, and Youth variants.

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.

Production & Shipping

  • Processing: 1–2 business days from stock.
  • 📦 USA Standard: 3–7 business days.
  • USA Express: 2–4 business days.
  • 🌍 International: 1–3 weeks.
  • ⚠️ Best-sellers: If a popular design is temporarily out of stock, production may add 1–2 extra days before shipping.

Your jersey ships from stock in 1–2 business days. If a best-seller is temporarily low, a quick 1–2 day production run covers your order before we ship. Check the size chart above for your variant before ordering. We’re here if you have questions.

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