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Size Guide
Size Guide
One league, three charts, zero guesswork. Every number below is a body measurement — inches and centimetres side by side — across men’s, women’s and youth NFL kit. Measure once, read your row, and if you would like a second opinion before your parcel is packed, send us the numbers and we will check them against these charts for you.
The tape, not the guess
How to measure
Ninety seconds with a soft tape measure settles what no amount of label-squinting will. Wear a single thin layer, stand the way you normally stand, and let the tape touch you without squeezing. No tailor’s tape? Use a piece of string, pinch where it meets, then lay it against a ruler.
Right number, right chart
Which number decides
Most sizing mistakes are measurement mismatches — a waist compared against a chest, or a flat-laid garment width read as a body number. This page uses body measurements throughout. Confirm the deciding number here:
Which measurement decides which NFL garment.
| Garment | Decides the size | Double-check with |
|---|---|---|
| Men’s & women’s jerseys | Chest | Body length |
| Youth jerseys | Age band | Chest & height |
Football Sundays
Men’s NFL chart
NFL cuts run full and boxy — the classic oversized game-day shape, made to layer over a hoodie when the temperature drops. Seven sizes, S through 4XL.
NFL jersey — men’s, the full boxy cut, body measurements.
| Size | Chest (in) | Chest (cm) | Waist (in) | Length (in) | Length (cm) | Sleeve (in) |
|---|---|---|---|---|---|---|
| S | 35–38 | 89–97 | 29–32 | 29 | 74 | 17.5 |
| M | 38–41 | 97–104 | 32–35 | 30 | 76 | 18.5 |
| L | 41–44 | 104–112 | 35–38 | 31 | 79 | 19.5 |
| XL | 44–48 | 112–122 | 38–43 | 32 | 81 | 20.5 |
| 2XL | 48–53 | 122–135 | 43–48 | 33 | 84 | 21.5 |
| 3XL | 53–58 | 135–147 | 48–53 | 34 | 86 | 22.5 |
| 4XL | 58–63 | 147–160 | 53–58 | 35 | 89 | 23.5 |
Broad through the chest already, or planning to wear it over a hoodie? Order one size up from your row. Otherwise your true size is the right call.
Tapered, not shrunk
Women’s NFL chart
The women’s cut follows the body through the waist and finishes higher on the hip. Six sizes, XS through 2XL.
NFL jersey — women’s, tapered through the waist, body measurements.
| Size | Chest (in) | Chest (cm) | Waist (in) | Length (in) | Length (cm) |
|---|---|---|---|---|---|
| XS | 31–33 | 79–84 | 25–26 | 26 | 66 |
| S | 33–35 | 84–89 | 26–28 | 27 | 69 |
| M | 35–38 | 89–97 | 28–31 | 27.5 | 70 |
| L | 38–41 | 97–104 | 31–34 | 28 | 71 |
| XL | 41–44 | 104–112 | 34–37 | 28.5 | 72 |
| 2XL | 44–47 | 112–119 | 37–40 | 29 | 74 |
If the loose, boxy silhouette is what you are after, a men’s small or medium does that job better than sizing up the women’s rows.
The next generation
Youth NFL chart
Youth sizing runs on age bands, confirmed by chest and height. When age and measurements disagree, trust the measurements.
NFL youth jersey — choose by age, confirm with chest and height.
| Size | Ages | Chest (in) | Chest (cm) | Height (in) | Height (cm) |
|---|---|---|---|---|---|
| S | 7–8 | 26–27 | 66–69 | 50–54 | 127–137 |
| M | 9–12 | 28–30 | 71–76 | 55–60 | 140–152 |
| L | 13–15 | 31–33 | 79–84 | 61–63 | 155–160 |
| XL | 16–18 | 34–36 | 86–91 | 64–67 | 163–170 |
The questions we get weekly
Sizing questions
Six short answers to the sizing queries that fill our inbox. If yours is not here, email fanservice2026@outlook.com and we will sort it within 48 hours.
Do these charts use body measurements or garment measurements?
Which measurement matters most for an NFL jersey?
Do youth sizes follow the same chart as adults?
I am between two rows. Up or down?
Can you check my size before my order ships?
What if the size that arrives still is not right?
Measure once, cheer all season.
The right size is one email away if the charts leave any doubt.
Nick Bosa San Francisco 49ers 2025 Rivalries Collection Game Jersey - Black
Product Highlights
- Machine washable - cold, inside out, tumble dry low
- Straight through the body without a boxy shape
- Lightweight poly knit that still breathes in warm weather
At A Glance
| League | NFL Football |
| Team | San Francisco 49ers |
| Edition | Game |
| Made For | Men's |
| Player | Nick Bosa |
| Colorway | Black |
Key Details at a Glance
When You Will Wear It
- A birthday or holiday gift for the supporter who has the rest.
- Weeknight games when you are watching from the sofa with the volume up.
- Casual Fridays, errands and weekends when the jersey is simply the best option.
