2025 Never Summer - Proto Ultra Size Chart
| Size | Effective Edge | Nose/Tail Width | Waist Width | Taper | Sidecut* | Setback | Weight (kg) |
| 154 | 118.0 | 30.8 | 26.0 | 0 | Vario 731 | 0 | 54-72 |
| 157 | 121.0 | 30.9 | 26.2 | 0 | Vario 761 | 0 | 63-82 |
| 160 | 123.0 | 31.1 | 26.4 | 0 | Vario 782 | 0 | 72-90 |
| 163 | 126.0 | 31.3 | 26.6 | 0 | Vario 806 | 0 | 81-100+ |
All measurements in centimetres otherwise specified
Vario* Multiple Radius Average