Disciplines prone
The Dolphin ML Orange Line Y31 has 3 sizes in the current range, from 45 to 65 L. Its slenderness, 3.78, is greater than that of 83% of the 1,895 current boards that publish a length and a width.
No current board from another brand is within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width of this one.
None of these is within the tolerances above: each misses on volume, length or slenderness by up to 1.3× the tolerance.
| Brand | Board | Volume L | Δ volume | Length mm | Δ length | Slenderness | Mount |
|---|---|---|---|---|---|---|---|
| F-One | ROCKET FREE SURF 5'8 | 59 | +7.3% | 1,727 | +1.6% | 3.78 (+0.0%) | twin-track |
| Patrik | Chase WB-ML 55 | 55 | +0.0% | 1,702 | +0.1% | 3.68 (-2.5%) | twin-track |
| Starboard | Above 5'7" x 18" 60L (Carbon D2) | 60 | +9.1% | 1,700 | +0.0% | 3.70 (-2.0%) | twin-track |
| Family | Dolphin ML |
|---|---|
| Model | Dolphin ML Orange Line Y31 |
| Size, as the brand prints it | 55 |
| Volume, L | 55 |
| Length, mm | 1,700 (5'7") |
| Width, mm | 450 |
| Thickness, mm | 110 |
| Weight, kg | 4.7 |
| Slenderness (length ÷ width) | 3.78 |
| Slenderness band | 3.0–4.0 |
| Mount | — |
| Strap inserts | yes |
| Build | — |
| Construction | ORANGE Line: precision-molded Super EPS core (20 kg/m3), full 160 g/m2 fiberglass deck and bottom |
| Disciplines | prone |
| Rider weight | — |
| Rider level | — |
| Model year | — |
| Source | manufacturer · read 2026-10-02 |
Every figure above is the manufacturer's published claim, converted to comparable units.