Updated October 29, 2026 · 8 min read
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Short on time? Our picks
T-ballYouth Pull-On PantYXS–YS, elastic waistCheck price on Amazon →
Little LeagueCrush Premier PantYS–YL, adjustable inseamCheck price on Amazon →Alleson size chart · 2026
Order Alleson by waist first, then check the inseam
Alleson Athletic sizes its baseball and softball pants by waist, not by age. Use the charts below for youth, men’s and women’s pants, plus jerseys. If you only read one line: measure the waist, and if a growing child is between sizes, size up.

- T-ballYouth Pull-On Pant · YXS–YS, elastic waist
- Little LeagueCrush Premier Pant · YS–YL, adjustable inseam
- FastpitchWomen’s Belt Loop Pant · size up if between
- Adult recMen’s Knicker · AS–A2XL, short inseam
Alleson youth baseball pants size chart
Youth pants are the most common Alleson order. Sizes run from YXS to YXL, and the waist is the number that matters. Ages are only a rough guide, because two eight-year-olds can be two sizes apart.
| Youth size | Waist (inches) | Typical age (rough guide) | Typical height |
|---|---|---|---|
| YXS | 20–22″ | 4–6 | 40–46″ |
| YS | 22–24″ | 6–8 | 46–51″ |
| YM | 24–26″ | 8–10 | 51–56″ |
| YL | 26–28″ | 10–12 | 56–61″ |
| YXL | 28–30″ | 12–14 | 61–64″ |
Heights are a rough guide we added to help when you can’t measure. The waist column comes from Alleson’s general manufacturer size guide, as published by Alleson uniform retailers. Always confirm with the chart on the Amazon listing, because single styles can fit a little differently.
Alleson men’s (adult) baseball pants size chart
Adult pants add an inseam, which grows with each size. That is the part that trips people up: a tall, slim player may need a bigger size for length, then a belt to hold the waist.
| Adult size | Waist (inches) | Inseam (inches) |
|---|---|---|
| AXS | 25–27″ | – |
| AS | 28–30″ | 31″ |
| AM | 31–34″ | 32″ |
| AL | 35–38″ | 33″ |
| AXL | 39–42″ | 34″ |
| A2XL | 43–46″ | 35″ |
| A3XL | 47–50″ | 36″ |
Knicker styles, like the Alleson Men’s Baseball Knicker, end just below the knee, so ignore the inseam column for those. Order knickers by waist only.
Alleson women’s and girls’ softball pants size chart
Alleson’s fastpitch pants use women’s and girls’ sizing. The cut is closer than a baseball pant, and the fit gets the most mixed reviews of any Alleson style. The chart below shows typical women’s athletic sizing. Confirm the exact numbers on the listing before you buy.
| Women’s size | Typical waist | Typical hip | Street size (rough) |
|---|---|---|---|
| XS | 24–26″ | 33–35″ | 0–2 |
| S | 26–28″ | 35–37″ | 4–6 |
| M | 28–30″ | 37–39″ | 8–10 |
| L | 30–33″ | 39–42″ | 12–14 |
| XL | 33–36″ | 42–45″ | 16–18 |
| 2XL | 36–39″ | 45–48″ | 20–22 |
| Girls’ size | Typical waist | Typical age (rough) |
|---|---|---|
| GS | 22–24″ | 6–8 |
| GM | 24–26″ | 8–10 |
| GL | 26–28″ | 10–12 |
| GXL | 28–30″ | 12–14 |
Many buyers say the women’s belt-loop pant runs small in the hip, and some say the fabric is thin in light colors. If you are between sizes, or you wear sliding shorts underneath, size up. See our Alleson women’s fastpitch pants review for the full picture.
How to measure for Alleson pants
- Waist: measure around the natural waist, where the pants will sit. Keep the tape snug, not tight.
- Hip (women’s): measure around the widest part of the hips. Use whichever number points to the bigger size.
- Inseam: measure from the crotch to the ankle bone for full-length pants. For knickers, measure to just below the knee.
- Compare: find the size whose waist range holds your number. If you land on the line, read the “between sizes” tips below.
The Alleson pants worth buying, by size range

Alleson Youth Pull-On Baseball Pant
You need this if: your child is 4 to 8 and needs to dress themselves for games.
- SizesYXS–YXL
- WaistElastic, pull-on
- FabricDouble knit polyester
- Rating4.5★ (1,600+ ratings)
Why we recommend it: The elastic waist means no belt, and no tears in the dugout. It is the best-rated Alleson pant on Amazon, and buyers mostly praise the fit and the price.
Keep in mind: Some buyers say it runs long in the leg. That is fine for full-length wear, but small kids may need the hem rolled.

Alleson Crush Premier Baseball Pant
You need this if: your child is between sizes or grows fast mid-season.
- SizesYouth S–XL
- InseamAdjustable
- FabricDura-stretch double knit
- Rating4.1★ (280+ ratings)
Why we recommend it: The adjustable inseam lets one pant work full length now and knicker-style later. Buyers praise the adjustability and the look.
Keep in mind: It costs more than the pull-on, and it has belt loops, so add a belt.

Alleson Boys Baseball Pants with Braid
You need this if: your team wears piped pants to match its colors.
- SizesYouth S–XL
- StyleSide braid (piping)
- Fabric100% double knit polyester
- Rating4.3★ (310+ ratings)
Why we recommend it: Lots of pant and braid color combos, two welted back pockets and a zip fly. Quality gets the most praise.
Keep in mind: Fit gets mixed reviews, so measure the waist first.

Alleson Women’s Fastpitch Belt Loop Pant
You need this if: you need a classic, low-cost fastpitch pant in team colors.
- SizesWomen’s XS–2XL, girls’
- StyleBelt loop, full length
- FabricPolyester knit
- Rating4.1★ (4,000+ ratings)
Why we recommend it: It is the most-bought Alleson softball pant, and it comes in many colors at a low price.
Keep in mind: Size and fabric thickness get mixed reviews. Size up if between sizes, and pick darker colors if see-through is a worry.
Alleson jersey and top sizes
Alleson jerseys and reversible tanks are sized by chest. They are cut loose for layering over an undershirt, so most players order their normal T-shirt size.
| Adult size | Chest (inches) | Youth size | Chest (inches) |
|---|---|---|---|
| S | 34–36″ | YS | 26–28″ |
| M | 38–40″ | YM | 28–30″ |
| L | 42–44″ | YL | 30–32″ |
| XL | 46–48″ | YXL | 32–34″ |
| 2XL | 50–52″ | – | – |
The Alleson Reversible Mesh Tank is a good example: it is cut wide, so slim players often drop a size. Check the listing chart for the exact chest width.
Between sizes? What to do
- Kids: size up. Youth pants have room in the leg, and the elastic waist or a belt will take up the slack.
- Adult men: pick by waist, then check the inseam. If the inseam is too long, consider a knicker or wear the pant high with socks.
- Women’s fastpitch: size up, especially if you wear sliding shorts. The hip is the tight spot.
- Open-bottom pants: don’t size up “to grow into” these. A long open hem drags in the dirt and wears out.
Does Alleson run small or big?
It depends on the style. Based on Amazon review topics, the youth pull-on pant runs true to size or a little long. The boys’ braid pant and men’s pants get mixed fit comments, with roughly equal reports of small and big. The women’s belt-loop fastpitch pant has the clearest pattern: more buyers say it runs small than big. For that one, size up.
Alleson vs other brands: size conversion
Most youth baseball pant brands use similar waist ranges, so an Alleson YM is close to a YM from Rawlings or Champro. The bigger differences are in the inseam and the cut. Alleson’s classic pants are relaxed, while some newer brands are slimmer. If your child wears a slim-fit brand now, the same Alleson size will feel roomier.
| Your child wears | Try in Alleson | Why |
|---|---|---|
| Rawlings youth M | Alleson YM | Similar waist range |
| Champro youth M | Alleson YM | Similar waist range |
| Slim-fit youth L | Alleson YM or YL | Alleson is roomier; measure first |
| Kids’ jeans size 10 | Alleson YM | Rough match by waist |
Alleson sizes by league and age group
If you are ordering for a whole team, it helps to know which sizes come up most. These are typical spreads, not rules.
| League or level | Typical ages | Sizes to stock |
|---|---|---|
| T-ball | 4–6 | YXS, YS |
| Coach pitch | 6–8 | YS, YM |
| Little League majors | 9–12 | YM, YL |
| Juniors / 13U | 12–14 | YL, YXL, AS |
| High school | 14–18 | AS, AM, AL |
| Adult rec league | 18+ | AM, AL, AXL |
Coaches often order one extra of the two middle sizes. Late sign-ups and growth spurts always happen.
How Alleson pants should fit on the field
A good baseball pant lets the player squat, run and slide without pulling at the knee or the seat. Here is what a good fit looks like:
- Waist: sits on the hips without a belt pulling it tight. Two fingers should slide in easily.
- Seat: no strain when the player squats into a fielding stance.
- Knee: the reinforced knee (on styles that have one) sits over the kneecap, not above it.
- Length: full-length pants should break at the top of the shoe. Knickers should close just below the knee.
Washing Alleson pants so they keep their size
Alleson pants are polyester double knit, which holds its shape well. Wash cold, inside out, and skip high heat in the dryer. Heat won’t shrink the fabric much, but it can set grass and clay stains. Pre-treat dirt with a stain stick before washing, and hang to dry if you can. White pants stay whiter when washed apart from colored jerseys.
Got questions?
Frequently asked questions
How do Alleson baseball pants fit?
Most Alleson pants have a relaxed, classic fit with room in the leg. Order by waist. The youth pull-on runs true to size or a little long.
What size Alleson pants for a 10-year-old?
Most 10-year-olds wear YM or YL. Measure the waist: 24 to 26 inches is YM, and 26 to 28 inches is YL.
Do Alleson softball pants run small?
Many buyers say the women’s belt-loop fastpitch pant runs small in the hip. Size up if you are between sizes or wear sliding shorts.
Are Alleson jerseys true to size?
They are cut loose for layering. Most players order their usual T-shirt size, and slim players can drop one size in the reversible tanks.
Where is the Alleson size chart on Amazon?
Look for the “Size chart” link under the size picker on the product page. Use it to confirm the numbers here for the exact style.
How we built this chart
We used Alleson’s general manufacturer size guide, as published by Alleson uniform retailers, and checked it against the size notes and review topics on the Amazon listings. We did not test the pants ourselves. Height and age columns are rough guides we added. Always confirm with the size chart on the listing before you order.













