A youth large fits kids roughly ages 10 to 12, with a chest width between 16 and 18 inches laid flat and a body length of 22 to 24 inches depending on the brand. It is not the same as an adult small, and it is not interchangeable with an adult medium. If you are ordering custom shirts for a team or group, those two facts alone will save you from a pile of wrong-size returns.
Here is everything you need to know.
What Does Youth Large Actually Mean?
Youth sizing uses the same S, M, L, XL labels as adult sizing, but the garments are built on a completely different scale. A youth large is designed for a child's proportions: shorter torso, narrower chest, shorter sleeves. The chest width on a youth large runs about 16 to 18 inches laid flat. An adult small runs 18 inches laid flat. Those numbers can look close on paper, but on a real kid's body the fit is completely different.
Most brands size youth large for the 10-to-12 age range, but that is a rough guide at best. A bigger 10-year-old and a smaller 12-year-old can both fit a youth large, and a tall, thin 12-year-old might fit better in a youth XL. The measurements are what matter, not the age.
Youth Large Measurements by Brand
These are actual garment measurements taken flat. Chest width is measured one inch below the armhole across the shirt. Body length is measured from the highest point of the shoulder to the bottom hem.
| Brand | Style | Youth M Chest | Youth L Chest | Youth XL Chest | Youth L Body Length |
|---|---|---|---|---|---|
| Gildan | 5000B | 14-15" | 16-17" | 18-19" | ~23" |
| Bella+Canvas | 3001Y | 16.25" | 17.25" | 18.25" | 23.375" |
| Comfort Colors | 9018 | 16.5" | 17.5" | 19.5" | 22.75" |
| Next Level | 3110 | 13" | 14-15" | 15-16" | ~22" |
| Hanes | 498Y | 17" | 19" | 20" | 24.75" |
A few things worth noting from that table. Hanes runs noticeably larger than the other brands , a Hanes youth large chest is 19 inches, which is close to the chest width of an adult small in a standard unisex cut. Comfort Colors and Bella+Canvas cluster closer together. Next Level runs trim. If you are mixing brands in a group order, measure the actual shirt, not just the tag.
How Youth Large Compares to Adult Sizing
This is the question behind the question for most people searching this. They want to know if their kid can just wear an adult small, or whether they need to keep shopping the youth rack.
Here is the honest answer: for most brands, a youth large is smaller than an adult small in both chest width and body length. The body length difference is significant, about 4 to 5 inches shorter in most brands. That means an adult small will hang much longer on a kid's frame and look oversized even if the chest fits.
| Measurement | Youth Large (avg) | Adult Small (avg) |
|---|---|---|
| Chest width (laid flat) | 17-18" | 18-20" |
| Body length | 22-24" | 27-29" |
| Best for | Ages 10-12, ~75-115 lbs | Adults 34-36" chest |
The chest numbers overlap in some brands, which is why people get confused. But the body length gap does not close. A 23-inch shirt on a 12-year-old hits right at the waist. A 28-inch shirt on that same kid is going to look like a dress.
If you want a deeper breakdown of the youth XL versus adult small comparison specifically, we have a full post on it: Youth XL vs. Adult Small: The Complete Guide.
Who Is Searching for "Youth Large" and What They Actually Need
There are three different kinds of people searching this question, and they each need a slightly different answer.
Parents Sizing a Single Kid
You found a shirt design your kid loves and now you need to figure out the right size. The safest move is to grab a shirt that already fits them well, lay it flat, and measure the chest width and body length. Then compare to the table above. If you are between sizes, go up , kids grow fast and a slightly bigger shirt will still look fine.
If your child is 10 to 12 and average build, youth large is usually the right call. If they are on the taller or heavier side of that range, check the youth XL. We published a full Youth XL size chart with measurements for every major brand if you need to look at the next size up.
Coaches Ordering Team Uniforms
This is where the brand difference matters most. If you are ordering 20 shirts for a youth sports team, you need everyone in the same brand or the large on one kid will look completely different from the large on another kid.
A Hanes youth large chest runs 19 inches. A Comfort Colors youth large runs 17.5 inches. That is a meaningful difference, especially across a team photo.
For team orders, we always recommend ordering one sample in your target size before committing to the full run. At The Loyal Brand, we do this routinely , it saves coaches a second order every time.
If your team spans a wide age range and you are trying to figure out where youth ends and adult begins, the Mastering the Size Shift guide walks through the transition points by age, build, and brand.
Group Buyers Ordering Across Mixed Ages
School spirit shirts, family reunion tees, event shirts , any order where you have kids from ages 6 to 16 and adults all on the same shirt. This is the trickiest situation because youth XL and adult XS/small are close enough that people often try to bridge the gap.
For mixed-age group orders, a few things make this manageable:
- Order your youth and adult sizes from the same brand so the shirt looks consistent
- Do not try to substitute youth XL for adult XS to save on sizing complexity , the fit is noticeably different
- Get measurements from the people you are ordering for, not just age estimates
- Add a buffer of 10 to 15 percent extra on the sizes most likely to be wrong (usually the sizes covering ages 10 to 14)
We see this problem on group orders constantly. The customers who do it right come in with actual chest measurements. The ones who guess by age almost always need to exchange something.
Which One Should You Order?
Here is a simple decision guide:
Order youth large if:
- Your child is roughly ages 10 to 12
- Their chest measures between 16 and 19 inches laid flat (depending on brand)
- They are currently comfortable in a youth medium but need a bit more room
- You are ordering Bella+Canvas, Comfort Colors, or Gildan and your kid fits a standard 10-to-12 build
Order youth XL instead if:
- Your child is 12 to 14 and on the bigger or taller side
- The youth large chest measurement is within half an inch of their actual chest
- You are ordering Hanes, which runs larger , Hanes youth large may already be right
- They have outgrown their current youth large
Order adult small instead if:
- Your child is 14 or older and approaching adult proportions
- The body length of a youth shirt looks too short on them
- You want the shirt to have a longer, adult fit
For the youth XL versus adult XS comparison by brand, see our Youth XL vs. Adult XS breakdown.
FAQ
What size is youth large?
A youth large is typically sized for children ages 10 to 12, with a chest width of 16 to 19 inches laid flat (varies by brand) and a body length of 22 to 25 inches. It is considerably shorter and narrower than an adult small.
Is youth large the same as adult small?
No. Youth large and adult small are not the same size. An adult small has a body length of 27 to 29 inches and a chest width of 18 to 20 inches , both significantly larger than a youth large. The chest numbers occasionally overlap in some brands, but the body length difference makes them look completely different on the body.
What age fits a youth large?
Most brands target youth large for ages 10 to 12, but fit depends more on chest measurement and height than age. A bigger 10-year-old and a smaller 12-year-old can both be in a youth large. Measure the chest, do not guess by age.
What is youth large in adult sizing?
Youth large is closest to an adult XS or adult extra small in chest width, but significantly shorter in body length. If you are trying to find the closest adult equivalent, a youth large chest (16 to 18 inches) roughly matches an adult XS chest, but the shirt will be 4 to 5 inches longer in the body in the adult cut.
Is youth large the same as adult medium?
No. Youth large is not the same as adult medium. An adult medium has a chest width of 20 inches laid flat and a body length of 28 to 29 inches. A youth large is smaller in both dimensions. Putting an adult medium on a 10-year-old will look baggy and long.
How We Handle Sizing at The Loyal Brand
We have fitted more than 16,000 customers for custom apparel in Saint Augustine, FL and we see sizing questions on almost every group order. The ones that go smoothly share one thing in common: someone took actual measurements before submitting the order.
If you are putting together a team or group order and you are not sure whether youth large is right for everyone in that size range, reach out before you order. We will walk through it with you and make sure the shirts come out right the first time.
For custom t-shirts, we work with blank apparel from Gildan, Bella+Canvas, Comfort Colors, Next Level, Hanes, and dozens more. You can browse the full apparel catalog here to see sizing specs for any style you are considering.
Call us at 410-861-0633 or email john@theloyalbrand.com. We are happy to help you nail the sizing before a single shirt gets printed.