WearSparks
San Francisco Giants #40 Madison Bumgarner Style 4 Baseball Jersey
San Francisco Giants #40 Madison Bumgarner Style 4 Baseball Jersey
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Premium MLB-Style Jersey — Player-Grade Construction
Game day, street style, or stadium seat – this jersey hits every way. Breathable polyester mesh, fade-resistant print, and a fit that looks sharp whether you’re swinging for the fences or cheering from the stands.
📸 Seeing one style? This design is actually available on Men’s Cool Base, Men’s Flex Base, Women’s, and Youth (Boys). Choose at checkout and we’ll craft your jersey to order.
Jersey Features
- 🎨 Pro-Level Finish – Graphics applied with pressure and heat so they become part of the fabric – no cracking, no peeling.
- 🧵 Performance Ready – Quick-dry polyester mesh built for movement. Stays comfortable whether you’re playing or cheering.
- 👕 Athletic Cut – Tailored like a real uniform. Cool Base runs classic replica fit; Flex Base hugs closer for authentic performance feel.
- ⚾ Season After Season – Built to hold up to game days, laundry cycles, and years of wear.
Build Specs
- Cool Base (Replica): 100% polyester mesh at ~220g. Traditional loose fit for that stadium-style drape.
- Flex Base Men’s: 88% polyester, 12% spandex (≈240g). Pro-level stretch for a tailored, performance fit.
- Women’s: 100% polyester mesh at ≈200g with a contoured silhouette. Youth (Boys): 100% polyester mesh at ≈180g, sized for 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.
Jersey Sizing – All Variants
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.
When Will It Arrive?
- ✅ 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.
⚾ Visit WearSparks.com for more styles. Crafted with care, delivered with pride.
