Size Guide
Designed for an athletic Australian fit — close to the body, supportive, with a precise leg opening. The drawcord allows for further adjustment at the waist. If you're between sizes, size up.
| Measurement | S | M | L | XL |
|---|---|---|---|---|
| Waist (flat) | 39 | 41 | 43 | 45 |
| Front rise | 27.5 | 28.7 | 29.9 | 31.1 |
| Back rise | 28.2 | 29.4 | 30.6 | 31.8 |
Waist measurement reflects half-circumference. Double for total stretched waistband.
| JWS | AU/UK Waist | EU | US Waist |
|---|---|---|---|
| S | 28–30" | 44–46 | 28–30" |
| M | 30–32" | 48–50 | 30–32" |
| L | 32–34" | 52 | 32–34" |
| XL | 34–36" | 54 | 34–36" |
Measure around the natural waistline — just above the hip bone — keeping the tape parallel to the floor. Snug but not tight.
Measure around the fullest part of your hips, usually about 20 cm below the natural waist.
Our briefs run true to Australian sizing. If you typically wear a M in athletic swimwear — Speedo, 2EROS, aussieBum — you'll be a M in JWS. Prefer a more relaxed leg opening or between sizes? Size up.
Still unsure? Get in touch — we're happy to help you find the right size.