GYM SHORTS (SWYM & SMART) SWIMWEAR (2025 EDITION: SPARKLE, DUO-TONE, BLACK PANTHER)
| PRODUCT SIZE | S | M | L | XL | 2X / 2XL | 3X / 3XL |
|---|---|---|---|---|---|---|
| YOUR WAIST SIZE (US / UK / AU / NZ) | W28–W31 | W31–W33 | W33–W35 | W35–W37 | W37–W39 | W39–W41 |
| WAIST SIZE (EU) | 71–79 cm (EU 44–46) | 79–84 cm (EU 46–48) | 84–89 cm (EU 48–50) | 89–94 cm (EU 50–52) | 94–99 cm (EU 52–54) | 99–105 cm (EU 54–56) |
| BRIEFS FLAT WIDTH (inches) | 15 | 15 3/4 | 16 1/2 | 17 1/4 | 18 | 18 3/4 |
| BRIEFS FLAT WIDTH (cm) | 38 | 40 | 42 | 44 | 46 | 48 |
| PRODUCT SIZE | 4X / 4XL |
|---|---|
| YOUR WAIST SIZE (US / UK / AU / NZ) | W41–W43 |
| WAIST SIZE (EU) | 105–110 cm (EU 56–58) |
| BRIEFS FLAT WIDTH (inches) | 19 3/4 |
| BRIEFS FLAT WIDTH (cm) | 50 |
TANK TOPS
| PRODUCT SIZE | S | M | L | XL | 2XL | 3XL | 4XL |
|---|---|---|---|---|---|---|---|
| YOUR CHEST SIZE (US / UK) | 34 - 36 in | 38 - 40 in | 42 - 44 in | 46 - 48 in | 50 - 52 in | 54 - 56 in | 58 - 60 in |
| WAIST SIZE (EU / AU / NZ) | 86 - 91 cm | 96 - 101 cm | 106 - 111 cm | 116 - 121 cm | 127 - 132 cm | 137 - 142 cm | 147 - 152 cm |
ROLL-UP SHORTS (2025 EDITION)
| PRODUCT SIZE | US 28 | US 30 | US 32 | US 34 | US 36 | US 38 | US 40 |
|---|---|---|---|---|---|---|---|
| YOUR WAIST SIZE (US / UK / AU / NZ) | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| WAIST SIZE (EU) | 71 cm | 76 cm | 81 cm | 86 cm | 91 cm | 97 cm | 102 cm |
| LEVI'S (USA SIZE) | 28 | 30 | 32 | 34 | 36 | 38 | 40 |
| ZARA (EU SIZE) | 38 | 40 | 42 | 44 | 46 | 48 | 50 |
UNDERWEAR / SWIMWEAR / ROLL-UP SHORTS (2024 EDITION)
Please note: 2024 swimwear is skimpier, so it runs smaller. You can size up for a more classic fit.
| PRODUCT SIZE | S | M | L | XL | 2X / 2XL | 3X / 3XL |
|---|---|---|---|---|---|---|
| YOUR WAIST SIZE (US / UK / AU / NZ) | W28–W31 | W31–W33 | W33–W35 | W35–W37 | W37–W39 | W39–W42 |
| WAIST SIZE (EU) | 71–79 cm (EU 44–46) | 79–84 cm (EU 46–48) | 84–89 cm (EU 48–50) | 89–94 cm (EU 50–52) | 94–99 cm (EU 52–54) | 99–107 cm (EU 54–56) |
| BRIEFS FLAT WIDTH (inches) | 13 3/8 | 14 1/4 | 15 | 15 3/4 | 16 1/2 | 17 1/4 |
| BRIEFS FLAT WIDTH (cm) | 34 | 36 | 38 | 40 | 42 | 44 |
Our sizes generally match other major brands. We recommend selecting your usual size.
For underwear and swimwear: you can measure the waist of a new pair you own and compare it to our chart.