2025 Never Summer - Proto Slinger Size Chart
| Size | Effective Edge | Nose/Tail Width | Waist Width | Taper | Sidecut* | Setback | Weight (kg) |
| 149 | 113.0 | 29.2 | 24.7 | 0 | Vario 735/657 | 0 | 45-68 |
| 153 | 117.0 | 29.5 | 25.0 | 0 | Vario 783/701 | 0 | 54-72 |
| 156 | 119.0 | 29.8 | 25.3 | 0 | Vario 818/736 | 0 | 63-90+ |
| 154 Wide | 117.0 | 30.3 | 25.8 | 0 | Vario 786/703 | 0 | 54-82 |
| 157 Wide | 120.0 | 30.7 | 26.2 | 0 | Vario 823/737 | 0 | 63-90+ |
All measurements in centimetres otherwise specified
Vario* Multiple Radius Average