Size guide
Let's get you into the right size first time. Every Beast Store tee is cut to the same classic fit, so once you know your size here, you know it across the whole tee range — adults S to XXL, kids 7-8Y to 15-16Y.
How the classic fit runs
Classic fit means exactly what it sounds like: a straight body, a crew neck that sits where it should, and short sleeves that land on the upper arm. Not skin-tight. Not a tent. Just an easy fit with room to move.
Hoodies and sweatshirts
Our hoodies and sweatshirts are cut to an oversized fit, in adult sizes S to XXL. Not sure which size to pick? Email mrbeast@amplybrands.com with the design and your usual size and we'll help.
How to measure
Two ways to do this. Pick whichever is easier, grab a soft measuring tape, and take your time.
The easy way: copy a tee you already love
- Find the t-shirt you reach for most and lay it flat. Smooth out the creases.
- Chest: measure straight across, from one side seam to the other, just below where the sleeves join the body.
- Length: measure from the highest point of the shoulder, beside the neck, straight down to the bottom hem.
- Match those two numbers to the closest row below.
The other way: measure yourself
- Chest: wrap the tape around the fullest part of your chest, level and snug but not squeezing.
- Length: measure from the top of your shoulder to where you like a tee to finish.
- Measuring a kid? Ask them to stand up straight with arms relaxed, over a thin t-shirt rather than a jumper.
All measurements are in inches, taken flat across the garment rather than around the body. Garment measurements can vary by about half an inch either way.
Adult tee sizes (inches)
| Size | Body length | Shoulder width | Chest, flat | Sleeve length |
|---|---|---|---|---|
| S | 26 | 17.5 | 19 | 8 |
| M | 27 | 18.5 | 20.5 | 8.5 |
| L | 28 | 19.5 | 22 | 9 |
| XL | 29 | 20.5 | 23.5 | 9.5 |
| XXL | 30 | 21.5 | 25 | 10 |
Kids tee sizes (inches)
| Size | Body length | Shoulder width | Chest, flat | Sleeve length |
|---|---|---|---|---|
| 7-8Y | 19 | 13.5 | 15 | 5.5 |
| 9-10Y | 21 | 14.5 | 16 | 6 |
| 11-12Y | 23 | 15.5 | 17 | 6.5 |
| 13-14Y | 25 | 16.5 | 18 | 7.5 |
| 15-16Y | 26 | 17.5 | 19 | 8 |
Between two sizes?
- Go up. In a classic fit tee, the larger size is usually the happier choice.
- Buying for a growing kid? Size up. Kids have an unhelpful habit of getting taller the week after the parcel arrives.
- Planning to wear something underneath? Size up for extra room.
- Prefer a shorter, neater length? Stay with your measured size.
Looking after it
Machine wash cold with like colours, do not bleach, and do not iron directly on the print. Fabric details for each product are listed on its product page.
Still not sure?
Message us at mrbeast@amplybrands.com with the design you're after and the measurements you've taken, and we'll tell you which size to pick. Worth doing anyway: measuring once beats sending a parcel back, though you do have 30 days to exchange it for a different size if it isn't right.