This size guide applies to high-performance competition swimwear: Speedo Fastskin LZR Pure Intent and Speedo Fastskin LZR Pure Valor. Both models share the exact same sizing grid.
Men's Size Guide (Jammers)
For elite racing jammers, the primary measurement is the hip circumference. If you fall between two sizes, always prioritize the size corresponding to your hip measurement.
| Speedo Size | Waist (cm) | Waist (in) | Hips (cm) | Hips (in) |
|---|---|---|---|---|
| 20 | 66 – 70 cm | 26" – 27.5" | 81 – 85 cm | 32" – 33.5" |
| 22 | 71 – 75 cm | 28" – 29.5" | 86 – 90 cm | 34" – 35.5" |
| 23 | 76 – 78 cm | 30" – 30.5" | 91 – 93 cm | 36" – 36.5" |
| 24 | 79 – 82 cm | 31" – 32.5" | 94 – 97 cm | 37" – 38.5" |
| 25 | 83 – 86 cm | 33" – 34" | 98 – 101 cm | 38.5" – 39.5" |
| 26 | 87 – 90 cm | 34.5" – 35.5" | 102 – 105 cm | 40" – 41.5" |
| 28 | 91 – 95 cm | 36" – 37.5" | 106 – 110 cm | 42" – 43.5" |
Women's Size Guide (Kneeskins)
For women's technical suits (Openback and Closedback), the key benchmark measurement is the Torso Loop (Body Loop), followed by chest and hip measurements.
| Speedo Size | Torso Loop (cm) | Chest (cm) | Waist (cm) | Hips (cm) |
|---|---|---|---|---|
| 20 | 136 – 139 cm | 79 – 82 cm | 61 – 64 cm | 81 – 84 cm |
| 22 | 140 – 143 cm | 83 – 86 cm | 65 – 68 cm | 85 – 88 cm |
| 23 | 144 – 152 cm | 87 – 90 cm | 69 – 71 cm | 89 – 92 cm |
| 24 | 153 – 157 cm | 91 – 94 cm | 72 – 75 cm | 93 – 96 cm |
| 25 | 158 – 161 cm | 95 – 98 cm | 76 – 78 cm | 97 – 100 cm |
| 26 | 163 – 166 cm | 99 – 102 cm | 79 – 82 cm | 101 – 104 cm |
| 28 | 173 – 175 cm | 103 – 107 cm | 83 – 86 cm | 105 – 109 cm |
How to Take Your Measurements
- Torso Loop (Women): Place the measuring tape at the top of the shoulder, run it down the front over the fullest part of the bust, through the legs, and back up the spine to the starting point.
- Chest: Measure around the fullest part of the chest, keeping the tape horizontal.
- Waist: Measure around your natural waistline (typically at the belly button).
- Hips: Measure around the fullest part of your hips and rear with feet together.
Fitting & Performance Tips
- Intent vs. Valor: The LZR Pure Intent features a dual-layer fabric construction and targeted power bands, making it feel significantly tighter and firmer than the LZR Pure Valor in the same size.
- Middle/Distance Events: For 200m+ events or swimmers who prefer slightly more flexibility, sizing up one size from the chart is common practice.
- Suiting Up: Fitting a brand-new technical suit can take 10 to 20 minutes. It should feel like a tight second skin with no wrinkles or air gaps.