Skip to product information
1 of 1

InkThreadWorks

Pittsburgh Pirates #9 Bill Mazeroski Style 1 Baseball Jersey

Pittsburgh Pirates #9 Bill Mazeroski Style 1 Baseball Jersey

Regular price $49.94 USD
Regular price $79.94 USD Sale price $49.94 USD
Sale Sold out
Shipping calculated at checkout.
Style
Size
Quantity

Game-Day Ready – Premium MLB-Inspired Jersey

The look of the majors, made for you. This MLB-style jersey features performance mesh fabric, athletic cut, and crisp, durable graphics on every variant.

📸 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.

Why You’ll Love This Jersey

  • 🎨 Stadium-Grade Print – Bold, vibrant graphics that hold up to full seasons of wear, washes, and cheers.
  • 🧵 Breathable & Cool – Engineered mesh fabric with built-in airflow. Designed for real game-day conditions.
  • 👕 Cool Base vs Flex Base – Cool Base for that traditional replica look; Flex Base for the authentic, moisture-locked athletic fit.
  • Cheer or Play – Worn on the field or in the stands, this jersey delivers the same premium feel.

Material & Construction

  • Cool Base Men’s: 100% polyester mesh (≈220g). Replica-cut jersey built for comfort and classic ballpark look.
  • Flex Base (Authentic): 88/12 polyester/spandex at ~240g. Athletic stretch fit, moisture-locked performance feel.
  • Women’s: 100% polyester mesh at ≈200g with a contoured silhouette. Youth (Boys): 100% polyester mesh at ≈180g, sized for ages 6–20.
  • Jersey fit – all measurements in inches. Between sizes? Size up for the classic loose look.

Jersey Sizing – All Variants

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.

Delivery Info

  • 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.

Our jerseys are stocked and inspected, ready for fast shipping. Occasionally a high-demand design needs a short 1–2 day production catch-up before it ships. Please measure carefully and match to the correct variant chart above. Questions? We reply fast.

⚾ Explore the collection at InkThreadWorks.com. Every jersey, ready to ship.

View full details