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  • San Francisco 49ers Youth Custom Jersey - Scarlet
  • San Francisco 49ers Youth Custom Jersey - Scarlet
  • San Francisco 49ers Youth Custom Jersey - Scarlet
1 / 3
San Francisco 49ers Youth Custom Jersey - Scarlet
$74.80 USD $79.99 USD
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Size
Size Guide

Size Guide

Sizing help
Find your NFL fit.

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.

Tape measure methodInches + centimetresMen, women & youthFree sizing check
Free shipping special for you30-day postage paid returnsSizing help by email
Home › Size Guide
01How to measure4 steps02Which number decides1 chart03Men’s NFL chart7 sizes04Women’s NFL chart6 sizes05Youth NFL chart4 sizes06Sizing questions6 answers
Order first, check second. Torn between two rows? Order the size you lean towards, then email your height, chest and waist to fanservice2026@outlook.com. We compare your numbers against these charts before the parcel is packed and swap the size if a different one fits you better. Nothing ships until we agree the size is right.
01

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.

Chest — the number that runs the showWrap the tape around the fullest part of your chest, straight under the armpits. Keep it level front to back and breathe normally — do not puff up, do not hollow out.
Waist — your fit-check numberMeasure at the narrowest part of your torso, usually just above the belly button. Tape snug, not cinched. The charts use it to confirm the cut, not to pick the letter.
Body lengthFrom the highest point of the shoulder next to your collar, straight down to where you want the hem to sit. Compare against the length column before committing.
SleeveShoulder seam to wrist bone with your arm slightly bent.
Gap rule: if your measurement lands between two rows, take the larger size. Room reads better than a pull, and the 30-day postage paid return is there if the letter still feels wrong.
02

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.

GarmentDecides the sizeDouble-check with
Men’s & women’s jerseysChestBody length
Youth jerseysAge bandChest & height
3NFL charts
17Size rows in total
S–4XLMen’s range
2Units — in & cm
03

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.

SizeChest (in)Chest (cm)Waist (in)Length (in)Length (cm)Sleeve (in)
S35–3889–9729–32297417.5
M38–4197–10432–35307618.5
L41–44104–11235–38317919.5
XL44–48112–12238–43328120.5
2XL48–53122–13543–48338421.5
3XL53–58135–14748–53348622.5
4XL58–63147–16053–58358923.5

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.

04

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.

SizeChest (in)Chest (cm)Waist (in)Length (in)Length (cm)
XS31–3379–8425–262666
S33–3584–8926–282769
M35–3889–9728–3127.570
L38–4197–10431–342871
XL41–44104–11234–3728.572
2XL44–47112–11937–402974

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.

05

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.

SizeAgesChest (in)Chest (cm)Height (in)Height (cm)
S7–826–2766–6950–54127–137
M9–1228–3071–7655–60140–152
L13–1531–3379–8461–63155–160
XL16–1834–3686–9164–67163–170
Where to look: chest decides an NFL jersey. If your measurement lands in the gap between two rows, take the larger size — a shirt with a little room always looks better than one that pulls.
06

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?
Body measurements, throughout — the tape wrapped around you, not the shirt laid on a table. That is why the chest figures read smaller than a flat-laid width.
Which measurement matters most for an NFL jersey?
Chest. Length and sleeve fine-tune the fit, but chest is the number that decides whether the size is right at all.
Do youth sizes follow the same chart as adults?
They do not. The youth chart runs on age bands confirmed by chest and height — see section 05.
I am between two rows. Up or down?
Up. Room reads better than a pull, and the 30-day postage paid return is your safety net if the larger letter still feels off.
Can you check my size before my order ships?
Yes — that is the deal in the box at the top of this page. Email your height, chest and waist with your order number and we will confirm or swap the size before packing.
What if the size that arrives still is not right?
Send it back — 30 days, postage paid, no argument. Start the return by emailing fanservice2026@outlook.com with your order number.

Measure once, cheer all season.

The right size is one email away if the charts leave any doubt.

Back to shoppingRead the FAQ
Quantity

San Francisco 49ers Youth Custom Jersey - Scarlet

BUILT FOR THE HARD WAY
A San Francisco 49ers Jersey that earns its place outside the stadium too. Clean lines, a relaxed drape and colors that sit easily next to denim, cargos or a hoodie. Tuck the front slightly into cargos for a sharper silhouette without losing the relaxed feel.

Highlights At A Glance

  • Slick enough to slide under a hoodie without bunching
  • Airflow through the knit, so heat does not build up
  • A collar that sits flat and stays put all day
  • Youth sizes follow age ranges rather than adult scaling

Why Supporters Pick This Jersey

Brushed inner face
The inside is softened slightly, so it does not feel slick or clammy against the skin.
Screen-printed body graphics
Color is pressed into the fabric rather than sitting on top of it, so it stays put.
Seam-taped shoulders
Taped seams across the shoulders reduce strain where the jersey takes the most pull.

Where It Works

  • Playing catch in the yard before the game comes on.
  • School game days and PE when the team colors are allowed.
  • Practice, pickup games and playground football.
  • Weekend trips to see San Francisco 49ers play with the family.

Fit, Personalization & Version

Personalization: Custom text is optional. Add a name and number at checkout, or take it exactly as shown.
Sizing: Age ranges are on the chart. Compare the garment measurements to something they already wear.
Version: This is the supporter-grade version - the one you actually wear. It carries the team identity and colors without the collector price tag.

At A Glance

LeagueNFL Football
TeamSan Francisco 49ers
EditionFan Edition
Made ForYouth
ColorwayScarlet

Before You Order

The jersey you receive matches the page. Edition, color and audience details are the same on the listing and the label.
Bulk and family orders are supported. Ordering several sizes at once is straightforward, and the size run usually covers it.
Measurements are in the chart, not guessed. Garment measurements are listed so you can compare against something you own.

FAQ

Can two people wear matching jerseys?
Yes. Adult, women's and youth runs are usually available on the same style, so a family can order the same color across sizes.
Can I wear it over a hoodie?
Yes. The cut leaves room across the shoulders, so layering over a hoodie works without pulling.
What if I am between two sizes?
Size up for a relaxed, layerable look, or stay with your usual size for a closer fit. The cut is close to standard sizing.
Will this fit over a t-shirt?
Yes. It is cut to layer easily over a tee without looking oversized.
Youth San Francisco 49ers Jersey
Wear the San Francisco 49ers colors with the fan edition look. Order yours and make match days one less thing to think about.

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