Fast Bobby · Foilboards · Duotone · discontinued

Duotone Sky Style SLS 2025 4'3"

Discontinuedsuperseded or no longer in the brand’s current range
35volume, L
1,290length, mm
510width, mm
2.53slenderness

Mount twin-track Disciplines wing 2025

The Sky Style SLS 2025 has 7 sizes on record, discontinued sizes included, from 25 to 95 L. Its slenderness, 2.53, is greater than that of 21% 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 Sky Style SLS 2025 4'3", closest first.
Brand	Board	Volume L	Δ volume	Length mm	Δ length	Slenderness	Mount
RRD	Beluga LTD Y27 35	35	+0.0%	1,300	+0.8%	2.50 (-1.2%)	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	Sky Style
Model	Sky Style SLS 2025
Size, as the brand prints it	4'3"
Volume, L	35
Length, mm	1,290 (4'3")
Width, mm	510
Thickness, mm	—
Weight, kg	3.71
Slenderness (length ÷ width)	2.53
Slenderness band	2.5–3.0
Mount	twin-track
Strap inserts	yes
Build	—
Construction	Biax Carbon PVC sandwich (SLS)
Disciplines	wing
Rider weight	up to 45 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.

All Duotone boards · Duotone on the Board Map · All foilboards