Sizing guide
Everything here is printed to order, so getting the size right the first time matters. Measurements are of the garment laid flat, not of your body.
The reliable way to pick a size
- Find a shirt you already own and love the fit of.
- Lay it flat and measure straight across the chest, an inch below the armpit seams.
- Double that number.
- Match it to the chest column below. That's your size.
This beats guessing from your usual size — brands differ by inches, but a shirt you already wear doesn't lie.
Signature Tee
Unisex and true to size. Between sizes, or after a more relaxed drape? Size up.
| Size | Chest (in) | Length (in) |
|---|---|---|
| S | 18 | 28 |
| M | 20 | 29 |
| L | 22 | 30 |
| XL | 24 | 31 |
| 2XL | 26 | 32 |
| 3XL | 28 | 33 |
| 4XL | 30 | 34 |
Signature Long Sleeve
The same body as the Signature Tee with a longer sleeve. True to size.
| Size | Chest (in) | Length (in) | Sleeve (in) |
|---|---|---|---|
| S | 18 | 28 | 33 |
| M | 20 | 29 | 34 |
| L | 22 | 30 | 35 |
| XL | 24 | 31 | 36 |
| 2XL | 26 | 32 | 37 |
| 3XL | 28 | 33 | 38 |
Signature Hoodie
Cut oversized on purpose. Take your normal size for the intended fit, or size down for a closer one.
| Size | Chest (in) | Length (in) |
|---|---|---|
| S | 22 | 27 |
| M | 24 | 28 |
| L | 26 | 29 |
| XL | 28 | 30 |
| 2XL | 30 | 31 |
| 3XL | 32 | 32 |
Women's Signature V-neck
A relaxed women’s fit. True to size.
| Size | Bust (in) | Length (in) |
|---|---|---|
| S | 17 | 25 |
| M | 18 | 26 |
| L | 19.5 | 27 |
| XL | 21 | 28 |
| 2XL | 23 | 29 |
Women's Signature Tank
Form-fitting through the body. Size up if you want a looser drape.
| Size | Bust (in) | Length (in) |
|---|---|---|
| XS | 15 | 25 |
| S | 16 | 26 |
| M | 17 | 26.5 |
| L | 18.5 | 27 |
| XL | 20 | 27.5 |
Signature Micro Tank
Fitted and cut short. Size up if you want more length.
| Size | Bust (in) | Length (in) |
|---|---|---|
| XS | 13 | 15 |
| S | 14 | 15.5 |
| M | 15 | 16 |
| L | 16.5 | 16.5 |
| XL | 18 | 17 |
| 2XL | 19.5 | 17.5 |
Hats and accessories
The Signature Trucker and Beanie are one size, adjustable. The Cuzzi comes in regular and slim 12Â oz.
Still not sure?
Email gbfsupport@gmail.com with your usual size and what you're after and we'll tell you exactly what we'd send. Faster than guessing, and we'd rather get it right than process a return.