Size & fit
Sizes XS–XXL across every cut. Measure your waist at the band line — not your trouser size, which is vanity-sized and differs by brand.
Find your size
| Size | Waist (in) | Waist (cm) | Hip (in) | Hip (cm) | US | EU | UK |
|---|---|---|---|---|---|---|---|
| XS | 26–28 | 66–71 | 33–35 | 84–89 | 26–28 | 44–46 | 26–28 |
| S | 28–30 | 71–76 | 35–37 | 89–94 | 28–30 | 46–48 | 28–30 |
| M | 30–32 | 76–81 | 37–39 | 94–99 | 30–32 | 48–50 | 30–32 |
| L | 32–34 | 81–86 | 39–41 | 99–104 | 32–34 | 50–52 | 32–34 |
| XL | 34–37 | 86–94 | 41–44 | 104–112 | 34–36 | 52–54 | 34–36 |
| XXL | 37–40 | 94–102 | 44–47 | 112–119 | 38–40 | 56–58 | 38–40 |
Between two sizes? Take the larger. Our waistband has 30 mm of stretch, not 60 — it is built to hold, not to give.
Which cut
| Cut | Inseam | Sits | Best under |
|---|---|---|---|
| Boxer brief 7" | 7 in / 18 cm | Mid-thigh | Jeans, chinos, suit trousers |
| Boxer brief 5" | 5 in / 13 cm | Upper thigh | Shorts, slim trousers |
| Trunk 3" | 3 in / 8 cm | High thigh | Shorts, linen, summer |
| Boy short | 2.5 in / 6 cm | Full seat, mid rise | Leggings, anything tight |
| Cheeky | — | Cut away at the seat, mid rise | Anything high-waisted |
| High-waist brief | — | Full seat, natural waist | Dresses, high-rise trousers |
| Thong | — | Low rise | Under everything, no line |
Leg length is measured from the crotch seam down the inside of the leg. A 3" trunk on a 6'2" frame reads shorter than on a 5'6" frame — that is normal, not a fault.

How to measure
Waist
Stand relaxed, tape around the narrowest part of your torso, roughly where the band sits. Keep one finger under the tape. Do not suck in.
Hip
Feet together, tape around the widest part of the seat. This is the number that decides whether the leg opening is right.
Thigh
Around the fullest part of the upper thigh, standing. Most people measure too low — go up until the tape stops growing.
Leg length
From the crotch seam down the inside of the leg to where you want the hem. Compare against 7", 5" and 3".
Mercerized cotton.
Not pure cotton.
Every pair is cut from mercerized cotton — long-staple cotton yarn held under tension while it is treated with caustic soda, then washed out. That one step changes the fibre: the yarn swells, straightens and takes on a low, silk-like sheen, and it stops behaving like the cotton you know.
What you get for it: a softer hand on the first wear rather than the tenth, real resilience, and markedly better abrasion resistance at the seat and inner thigh — the two places a pair actually wears out. It also holds its dimensions, so a pair that fits on day one still fits on day ninety.
A pure-cotton brief is a different product. It is cheaper to make, it goes limp, and it pills. We do not sell one.

Three weights of the same yarn
| Fabric | Stretch | Recovery | Fit advice |
|---|---|---|---|
| Mercerized 180 | Two-way, moderate | Very good | True to size. The everyday weight — silky, light, holds its shape. |
| Mercerized 220 | Two-way, firm | Excellent | True to size. Denser and more opaque; the weight that holds a big print without distorting. |
| Mercerized Cool | Four-way, high | Excellent | True to size. Fine-gauge, breathes and wicks — the one to take if you run hot. |