2025-2026 Celtic Athletic Fit Home Shirt (McStay 8)
Jersey Size Guide
Find your fit across Soccer · NBA · NFL · MLB · NHL · NCAA. Measurements are body sizes — jerseys are cut for a relaxed fit unless noted.
Free shipping over €69 · duties & taxes included · 30-day returns| Size | Chest (cm) | Chest (in) | Length (cm) | Length (in) |
|---|---|---|---|---|
| XS | 81–86 | 32–34 | 66–68 | 26–27 |
| S | 86–91 | 34–36 | 69–71 | 27–28 |
| M | 97–102 | 38–40 | 72–74 | 28–29 |
| L | 107–112 | 42–44 | 75–77 | 29–30 |
| XL | 117–122 | 46–48 | 78–80 | 31–32 |
| 2XL | 127–132 | 50–52 | 81–83 | 32–33 |
| 3XL | 137–142 | 54–56 | 84–86 | 33–34 |
| 4XL | 147–152 | 58–60 | 87–89 | 34–35 |
How to measure
- Chest: wrap the tape under your arms and around the fullest part of your chest. Keep the tape level.
- Length: measure from the top of your shoulder seam straight down to where you want the hem to sit.
- Tip: measure a jersey you already own and compare it to the chart above for the safest pick.
- Between sizes? Size up for a relaxed game-day fit, or down for a closer layer look.
| Size | Chest (cm) | Chest (in) | Length (cm) | Length (in) |
|---|---|---|---|---|
| XS | 76–81 | 30–32 | 59–61 | 23–24 |
| S | 81–86 | 32–34 | 62–64 | 24–25 |
| M | 91–97 | 36–38 | 65–67 | 26–26 |
| L | 102–107 | 40–42 | 68–70 | 27–28 |
| XL | 112–117 | 44–46 | 71–73 | 28–29 |
| 2XL | 122–127 | 48–50 | 74–76 | 29–30 |
How to measure
- Chest: wrap the tape under your arms and around the fullest part of your chest. Keep the tape level.
- Length: measure from the top of your shoulder seam straight down to where you want the hem to sit.
- Tip: measure a jersey you already own and compare it to the chart above for the safest pick.
- Between sizes? Size up for a relaxed game-day fit, or down for a closer layer look.
Kids & Youth covers four stages — start with the one that matches the child's age. Height is the most reliable guide. All youth cuts are unisex.
Infant & Baby — by month (0–24M)
| Size | Months | Height (cm) | Height (in) | Chest (cm) | Chest (in) |
|---|---|---|---|---|---|
| 0–3M | 0–3 | 50–60 | 20–24" | 36–41 | 14–16 |
| 3–6M | 3–6 | 60–68 | 24–27" | 41–46 | 16–18 |
| 6–12M | 6–12 | 68–76 | 27–30" | 46–49 | 18–19 |
| 12–18M | 12–18 | 76–84 | 30–33" | 49–51 | 19–20 |
| 18–24M | 18–24 | 84–92 | 33–36" | 51–54 | 20–21 |
Toddler (2T–4T)
| Size | Age | Height (cm) | Height (ft) | Chest (cm) | Chest (in) |
|---|---|---|---|---|---|
| 2T | 2 | 84–92 | 2'9"–3'0" | 51–54 | 20–21 |
| 3T | 3 | 92–100 | 3'0"–3'3" | 54–56 | 21–22 |
| 4T | 4 | 98–104 | 3'3"–3'5" | 56–58 | 22–23 |
Little Kids (5–8 yrs)
| Size | Age | Height (cm) | Height (ft) | Chest (cm) | Chest (in) |
|---|---|---|---|---|---|
| YXS | 5–6 | 110–116 | 3'7"–3'10" | 61–66 | 24–26 |
| YS | 7–8 | 122–128 | 4'0"–4'2" | 66–71 | 26–28 |
| YM | 8–9 | 128–134 | 4'2"–4'5" | 71–74 | 28–29 |
Big Kids (9–12 yrs)
| Size | Age | Height (cm) | Height (ft) | Chest (cm) | Chest (in) |
|---|---|---|---|---|---|
| YL | 9–10 | 134–140 | 4'5"–4'7" | 74–79 | 29–31 |
| YXL | 11–12 | 146–152 | 4'9"–5'0" | 79–84 | 31–33 |
How to measure
- Height: Have your child stand straight against a wall and mark the top of their head. Measure from the floor to the mark.
- Chest: Wrap the tape under their arms and around the fullest part of the chest. Keep the tape level.
- Tip: Measure a shirt they already own and compare it to the chart above for the safest pick.
- Between sizes?: Kids grow fast — size up if they're near the top of a range.
Shorts are sized by waist. Basketball shorts run long and loose; soccer shorts sit higher and shorter. When between sizes, size up for a relaxed feel.
Men's Shorts
| Size | Waist (cm) | Waist (in) | Hip (cm) | Hip (in) |
|---|---|---|---|---|
| XS | 71–76 | 28–30 | 88–93 | 35–37 |
| S | 76–81 | 30–32 | 93–98 | 37–39 |
| M | 81–86 | 32–34 | 98–103 | 39–41 |
| L | 86–91 | 34–36 | 103–108 | 41–43 |
| XL | 91–99 | 36–39 | 108–116 | 43–46 |
| 2XL | 99–107 | 39–42 | 116–124 | 46–49 |
| 3XL | 107–114 | 42–45 | 124–132 | 49–52 |
| 4XL | 114–122 | 45–48 | 132–140 | 52–55 |
Women's Shorts
| Size | Waist (cm) | Waist (in) | Hip (cm) | Hip (in) |
|---|---|---|---|---|
| XS | 61–66 | 24–26 | 86–91 | 34–36 |
| S | 66–71 | 26–28 | 91–96 | 36–38 |
| M | 71–76 | 28–30 | 96–101 | 38–40 |
| L | 76–84 | 30–33 | 101–109 | 40–43 |
| XL | 84–91 | 33–36 | 109–116 | 43–46 |
| 2XL | 91–99 | 36–39 | 116–124 | 46–49 |
Kids Shorts
| Size | Age | Waist (cm) | Waist (in) | Hip (cm) | Hip (in) |
|---|---|---|---|---|---|
| YXS | 5–6 | 56–61 | 22–24 | 66–71 | 26–28 |
| YS | 7–8 | 61–66 | 24–26 | 71–76 | 28–30 |
| YM | 8–9 | 66–71 | 26–28 | 76–81 | 30–32 |
| YL | 9–10 | 71–76 | 28–30 | 81–86 | 32–34 |
| YXL | 11–12 | 76–81 | 30–32 | 86–91 | 34–36 |
How to measure shorts
- Waist: measure around your natural waistline, just above your belly button. Keep the tape snug but not tight.
- Hips: wrap the tape around the fullest part of your hips and seat. This is the widest point shorts need to clear.
- Inseam: measure from the inside leg seam straight down to where you want the hem to sit. Basketball shorts run longer; soccer shorts are shorter.
- Between sizes? For a relaxed basketball fit, size up. For a closer soccer fit, stay true to size.
Fit by sport
Different leagues cut differently. Here's what to expect before you order.
Soccer jerseys
Standard cut is loose and boxy; tailored cut is slim, stretchy, and shorter. Europeans usually prefer a tighter soccer fit, US fans often size up for a casual look.
NBA jerseys
Standard cut is relaxed and long (drops below the hips). Tailored cut is closer to the body. If you're under 5'10", the body length can feel long — size down for a cleaner fit.
NFL jerseys
Designed boxy with longer sleeves. Most fans buy true to size for a roomy game-day layer. If you want to wear it over a hoodie, size up one.
NHL jerseys
Very boxy because they're designed to fit over hoodies or layers. A Men's Medium NHL jersey often fits like a Large in other sports. Size down if you want a normal silhouette.
MLB jerseys
Button-front, relaxed cut. Similar to a casual baseball shirt. Standard versions run true to size; tailored cuts are slightly trimmer.
NCAA jerseys
Follows the same cuts as US college leagues (football = NFL-like, basketball = NBA-like). Check the league equivalent above for the best guess.
Jersey Cut Guide — Standard Fit vs Athletic Fit
| Feature | Standard Fit | Athletic Fit |
|---|---|---|
| Fit | Relaxed, true to size | Slim, tailored cut |
| Weight | Lighter, softer fabric | Heavier, more structured |
| Badges & patches | Printed or stitched style | Heat-applied style |
| Best for | Casual wear, everyday fit | Slimmer athletic look |
| Size tip | True to size | Size up if between sizes |
Custom jerseys
Common questions
Should I size up for jerseys?
Only if you want a loose, streetwear fit or plan to layer over a hoodie. For tailored cuts, many buyers actually size down because the cut is slim.
Are your sizes US, UK, or EU?
We list chest and length in both cm and inches, so you can match by body measurement no matter where you're shopping from.
My chest is between two sizes — which do I pick?
For standard fit, go with the larger size. For athletic fit, check the length too — if you're tall, take the larger size; if you're shorter, the smaller one may fit better.
Can I return a jersey if the size is wrong?
Yes — unworn items with tags attached can be returned within 30 days. See our Return Policy for details.
Logistics &Issues
Where's My Gear?
Soon as your order ships, you'll get an email with a tracking link. Here's exactly what to expect.
Track Your Order
Have your tracking number handy?
Enter your tracking code below to check live status.
Tip: The fastest way is the "Track Order" button inside your shipping confirmation email.
The Journey, Step by Step
From checkout to your doorstep.
Order Placed
We confirm your order and start picking your jersey. Processing takes 1–2 business days.
Shipped
You get an email with your carrier tracking number the moment it leaves our warehouse.
In Transit
Allow 24–48 hours for the first tracking scan to appear. Carriers update overnight, not live.
Delivered
Game time. Rip the box open and rep your team.
Estimated Delivery Windows
| Region | Estimated Delivery |
|---|---|
| Europe & UK | 7–15 business days |
| North America (US & Canada) | 7–15 business days |
| Other International Regions | 7–20 business days |
No Tracking Yet?
Don't panic — here's the usual fix.
If it's been more than 2 business days and you haven't seen a shipping email, check your spam folder first. Still nothing? Hit our Contact Us page with your order number and we'll pull it up within a day.
Engineered for True Fans
Breathable Mesh
Moisture-wicking fabric keeps you dry and cool.
Sharp Details
Vibrant team crests and crisp lettering built to last.
Duty & Tax Included
All taxes included. Zero extra fees at your doorstep.
30-Day Guarantee
Hassle-free returns and size exchanges.
Guaranteed Safe Checkout
