Fast Bobby · Foilboards · Duotone · discontinued

Duotone Downwinder Air 2024 6'10''

Discontinuedsuperseded or no longer in the brand’s current range
105volume, L
2,080length, mm
508width, mm
4.09slenderness

Mount twin-track Build inflatable Disciplines downwind, sup, wing 2024

The Downwinder Air 2024 has 3 sizes on record, discontinued sizes included, from 105 to 125 L. Its slenderness, 4.09, is greater than that of 87% of the 1,895 current boards that publish a length and a width.

Closest boards from other brands

Mount is shown beside each board, never matched on.

Current boards from other brands within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width of the Duotone Downwinder Air 2024 6'10'', closest first.
Brand	Board	Volume L	Δ volume	Length mm	Δ length	Slenderness	Mount
Aeryn	iFlow Flow Inflatable 20 PSI 6'10	111	+5.7%	2,080	+0.0%	4.08 (-0.4%)	twin-track

Specifications

Every figure is Duotone's own, read from the source linked in the last row, converted to millimetres and kilograms where the brand prints inches or pounds. Slenderness is computed here, length ÷ width.
Family	Downwinder Air
Model	Downwinder Air 2024
Size, as the brand prints it	6'10''
Volume, L	105
Length, mm	2,080 (6'10")
Width, mm	508
Thickness, mm	150
Weight, kg	5.5
Slenderness (length ÷ width)	4.09
Slenderness band	4.0–5.0
Mount	twin-track
Strap inserts	no
Build	inflatable
Construction	Fusion Technology (Fusion Laminated Drop Stitch)
Disciplines	downwind, sup, wing
Rider weight	up to 95 kg (the brand’s stated range)
Rider level	—
Model year	2024
Source	manufacturer · read 2026-10-02

Every figure above is the manufacturer's published claim, converted to comparable units.

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