Firewire Seaside Helium
Surf › Swallow tail
Naish, 2026
1575mm long · 5'2"
476mm wide
60mm thick
25litres
Listed by the brand, read off a photo, or worked out: where every number comes from
In one line
The 2025 outline, refined. The 25 L is the same length and width as the 2025 25 L.
25 L against the 2025 25 L, listed length and width.
As listed by Naish
| size | length | width | thickness | weight |
|---|---|---|---|---|
| 25 L | 5'2" · 1575 mm | 476 mm | 60 mm | 2.6 kg |
| 28 L | 5'5" · 1651 mm | 489 mm | 64 mm | 2.7 kg |
Every size side by side, tails on one line, one scale
Before it · 2025
The 2026 25 L is the same length and width as the 2025 25 L. Open the 2025
listed length and width
From above, then from the side, true scale · the chosen size solid, the others dashed
Read off the 25 L outline · derived
51 %wide point, 806 mm from the tail
3.24length over width
393mm wide 12″ from the tail
6,082cm² of planform
Read off the 28 L outline · derived
51 %wide point, 836 mm from the tail
3.37length over width
392mm wide 12″ from the tail
6,375cm² of planform
Rocker of the 25 L · measured
Rocker of the 28 L · scaled from the 25 L measured
True proportions · dots at 10 mm and 12″ in from each tip · bracket: flat to within 3 mm · Measured on Naish's photo of the 25 L. Tail end set by Naish's photo convention, not checked by a person.
Original pages · 1
Closest outlines from other models, once stretched to one length and width · derived
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