Sizing Chart
Sizing — read this before you order
All sizes displayed on my site are in standard North American sizing.
Countries such as Japan, The UK, Australia and others do have their own sizing standards. Please use the information below to choose the correct size.
Straight up — I can't do returns or exchanges on sizing.
I say that because International shipping and tariffs make it impossible for a shop my size. A size swap to the other side of the world costs more than the shirt.
BUT, I will work with you to get the right size you need. Just reach out!
Let's get the size right...
TIP: These are genuine work shirts — grab a shirt you already wear, measure it flat, match it to the chart. Takes thirty seconds and it's the most reliable way to do this.
Still not sure? Send a message before you order. You'll get me — the gearhead who drew the thing — not a AI bot. I'd rather spend five minutes sorting your size than have you stuck with a shirt that doesn't fit.
So ask, I'm here to help.
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Clothing sizes:
If you are unsure about your size, please consult either your closet, your mom, your wife, or as a last resort, our chart below. If you wear a large shirt from Walmart, you will wear a large shirt from us.
And yes, unfortunately, 2xl, 3xl & 4xl costs me more, so I do have to charge more for those.
All my clothing sizes follow standard North American apparel sizing in INCHES and the guides below are approximates based on manufacturers specifications.
Width measurements (unless otherwise noted) are measured in CIRCUMFERENCE in INCHES

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Tee Shirts
Most men's tees are cut pretty much the same. Measure a tee you already own, flat, and match it to the chart on the product page.
If there's any doubt at all, contact me first. I'll help you choose which size to order.
Men's Tee Shirts Canada/USA standard size chart:
Use this chart for converting LENGTH and CHEST sizes to S, M L, XL, 2XL, 3XL, or 4XL size. Measure your chest size and length (as shown in the illustration) in inches to determine which size fits you best.
USA to International men's tee shirt Size Chart Conversion
Convert our Dirty Monkey Standard North American sizes to Australian, Japanese, and European sizing values
North American Sizing:
| Dirty Monkey Men's Tees | |||
| SIZE | CHEST Circumference |
NECK Circumference |
LENGTH |
| S | 34" - 36" | 14" - 14.5" | 28" |
| M | 38" - 40" | 15" - 15.5" | 29" |
| L | 42" - 44" | 16" - 16.5" | 30" |
| XL | 46" - 48" | 17" - 17.5" | 31" |
| 2XL | 50" - 52" | 18" - 18.5" | 32" |
| 3XL | 54" - 56" | 19" - 19.5" | 33" |
| 4XL | 58" - 60" | 20" - 21.5" | 34" |
| 5XL | 62" - 64" | 22" - 22.5" | 35" |
Men's Tee Size Conversions:
(When placing your order - the size you select will be in North American sizing)
| Men's Tees - (EU Sizing) | |||
| SIZE (Dirty Monkey) |
SIZE (EU) |
CHEST Circumference |
LENGTH |
| S | 44-46 | 81-91cm | 71cm |
| M | 48-50 | 96-101cm | 73cm |
| L | 50-52 | 101-106cm | 76cm |
| XL | 52-54 | 106-111cm | 79cm |
| 2XL | 54-56 | 111-116cm | 81cm |
| 3XL | 56-58 | 116-121cm | 84cm |
| Men's Tees - (AUS Sizing) | |||
| SIZE (Dirty Monkey) |
SIZE (AUS) |
CHEST Circumference |
LENGTH |
| S | AU 8 (S) | 86-91cm | 71cm |
| M | AU 10 (M) | 96-101cm | 73cm |
| L | AU 12 (L) | 101-106cm | 76cm |
| XL | AU 14 (XL) | 106-111cm | 79cm |
| 2XL | AU 16 (2XL) | 111-116cm | 81cm |
| 3XL | AU 18 (3XL) | 116-121cm | 84cm |
| Men's Tees - (UK Sizing) | |||
| SIZE (Dirty Monkey) |
SIZE (UK) |
CHEST Circumference |
LENGTH |
| S | 36 | 36" - 38" | 28" |
| M | 38 | 38" - 40" | 29" |
| L | 40 | 42" - 44" | 30" |
| XL | 42 | 46" - 48" | 31" |
| 2XL | 44 | 50" - 52" | 32" |
| 3XL | 46 | 54" - 56" | 33" |
| Men's Tees - (JAPANESE Sizing) | |||
| SIZE (Dirty Monkey) |
SIZE (JAPAN) |
CHEST Circumference |
LENGTH |
| S | M (JP) | 81-91cm | 71cm |
| M | L (JP) | 96-101cm | 73cm |
| L | XL (JP) | 101-106cm | 76cm |
| XL | 2XL (JP) | 106-111cm | 79cm |
| 2XL | 3XL (JP) | 111-116cm | 81cm |
| 3XL | 4XL (JP) | 116-121cm | 84cm |
If you have questions or need help, please reach out below 👇🏻
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Mechanic Work Shirts
Work shirts aren't cut like tees. Measure a shirt you already own, flat, and match it to the chart on the product page.
If there's any doubt at all, contact me first. I'll help you choose which size to order.
Dickies Mechanic Work Shirts USA Standard size chart:
Use this chart for converting neck or/and chest sizes to S, M L, XL, 2XL, 3XL or 4XL size. Measure your chest size and neck (as shown in the illustration above) in inches to determine which size fits you best.

| DICKIES | |||
| SIZE | CHEST | NECK |
MAXIMUM WAIST SIZE |
| S | 34" - 36" | 14" - 14.5" | 36" |
| M | 38" - 40" | 15" - 15.5" | 40" |
| L | 42" - 44" | 16" - 16.5" | 44" |
| XL | 46" - 48" | 17" - 17.5" | 48" |
| 2XL | 50" - 52" | 18" -18.5" | 51.5" |
| 3XL | 54" - 56" | 19" - 19.5" | 55" |
Red Kap Mechanic Work Shirts USA Standard size chart:
NOTE: Red Kap fits a slight bit larger than Dickies
Use this chart for converting neck or/and chest sizes to S, M L, XL, 2XL, 3XL or 4XL size. Measure your chest size and neck (as shown in the illustration above) in inches to determine which size fits you best.

| RED KAP | |||
| SIZE | CHEST | NECK |
MAXIMUM WAIST SIZE |
| S | 34.5" - 38" | 13.5" - 14.5" | 36" |
| M | 38.5" - 42" | 14.5" - 15.5" | 40" |
| L | 42.5" - 46" | 15.5" - 16.5" | 44" |
| XL | 46.5" - 50" | 16.5" - 17.5" | 48" |
| 2XL | 50.5" - 53" | 17.5" - 18.5" | 51.5" |
| 3XL | 53.5" - 56" | 18.5" - 19.5" | 55" |
| 4XL | 56.5 "- 59" | 19.5" - 20.5" | 58.5" |
LADIES' Tee Shirts USA Standard Sizing Guide
| Fitted V Neck T | |||||
| Size | S | M | L | XL | 2XL |
| Numeric Size | 4-6 | 8-10 | 12 - 14 | 16 | 18 - 20 |
| Bust | 35" - 36" | 37" - 38" | 39" - 41" | 42" - 44" | 45" - 47" |
| Waist | 26" - 27" | 28" - 30" | 30" - 32" | 33" - 35" | 36" - 38" |
| Hip | 35" - 37" | 37" - 39" | 39" - 41" | 42" - 44" | 45" - 47" |
| Sleeve Length-CB | 30 1/2" - 31" | 31 1/2" - 32" | 32 1/2" - 33" | 33 1/2" - 34" | 34" - 34 1/2" |
YOUTH Tee Shirts USA Standard Size Guide
| YOUTH TEES | APROX 5-6yrs old |
7-8yrs old |
9-11yrs old |
12-13yrs old |
| Size | S | M | L | XL |
| Numeric Size |
6 - 8
|
10 - 12 | 14 - 16 | 18 - 20 |
| Chest | 26" - 28" | 28" - 30" | 30" - 32" | 32" - 35" |
| Waist | 23" - 24.5" | 24.5" - 25.5" | 25.5" - 27" | 27" - 29" |
NOTE - these sizes are approximate only. They depend on if the child is husky or thin, small or large for their age.