Mount twin-track Disciplines downwind, sup 2025
The Downwinder Slim SLS 2025 has 3 sizes on record, discontinued sizes included, from 90 to 110 L. Its slenderness, 4.99, is greater than that of 94% 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 1.5× the tolerance.
| Brand | Board | Volume L | Δ volume | Length mm | Δ length | Slenderness | Mount |
|---|---|---|---|---|---|---|---|
| Kalama | Gator All Performance 7’8” x 18.5" (95L) | 95 | +5.6% | 2,337 | +2.5% | 4.97 (-0.3%) | — |
| Sunova | Aviator Downwind 7'8" x 18 1/2" 5 3/8" @95L | 95 | +5.6% | 2,337 | +2.5% | 4.97 (-0.3%) | twin-track |
| Starboard | Fyre 7'8" x 19" 90L | 90 | +0.0% | 2,337 | +2.5% | 4.84 (-3.0%) | twin-track |
| Family | Downwinder Slim |
|---|---|
| Model | Downwinder Slim SLS 2025 |
| Size, as the brand prints it | 7'6" |
| Volume, L | 90 |
| Length, mm | 2,280 (7'6") |
| Width, mm | 457 |
| Thickness, mm | — |
| Weight, kg | 5.54 |
| Slenderness (length ÷ width) | 4.99 |
| Slenderness band | 4.0–5.0 |
| Mount | twin-track |
| Strap inserts | no |
| Build | — |
| Construction | carbon custom sandwich (SLS) |
| Disciplines | downwind, sup |
| Rider weight | up to 90 kg (the brand’s stated range) |
| Rider level | — |
| Model year | 2025 |
| Source | manufacturer · read 2026-10-02 |
Every figure above is the manufacturer's published claim, converted to comparable units.
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