Duotone, 2025

Ultra FreeWave SLS 2025

2260mm long · 7'5"

610mm wide

≈ 127mm thick · medium confidence

94litres

Open in Studio See it on duotonesports.com

Sizes & Numbers

Listed by the brand, read off a photo, or worked out: where every number comes from

In one line

A narrower tail than most. A rounded pin tail, a medium nose and gently curved rails.

derived · against the 104 other windsurf boards in the atlas, read off the outlines.

As listed by Duotone

Duotone Ultra FreeWave SLS 2025: every size as listed by Duotone
size	length	width	thickness	weight
74 L	222 cm · 2220 mm	560 mm	≈ 111 mm · estimated	5.7 kg
84 L	224 cm · 2240 mm	580 mm	≈ 121 mm · estimated	5.9 kg
94 L	226 cm · 2260 mm	610 mm	127 mm · medium confidence	6.4 kg
104 L	227 cm · 2270 mm	630 mm	≈ 136 mm · estimated	6.7 kg
112 L	228 cm · 2280 mm	660 mm	≈ 139 mm · estimated	6.8 kg
119 L	230 cm · 2300 mm	685 mm	≈ 141 mm · estimated	7.2 kg

Every size side by side, tails on one line, one scale

Next to your board?

Lay the Duotone Ultra FreeWave SLS 94 L over up to four others, at one scale.

Compare with…

Generations

After it · 2026

The 2026 104 L is the same length and width as the 2025 104 L; its wide point moved 79 mm toward the nose. Open the 2026

listed length and width · wide point derived

2025 104 L 2026 104 L

The Duotone Ultra FreeWave SLS over time

Shape & Rocker

From above, then from the side, true scale · the chosen size solid, the others dashed

Read off the 74 L outline · derived

53 %wide point, 1177 mm from the tail

3.96length over width

367mm wide 12″ from the tail

9,786cm² of planform

Read off the 84 L outline · derived

53 %wide point, 1188 mm from the tail

3.86length over width

379mm wide 12″ from the tail

10,226cm² of planform

Read off the 94 L outline · derived

53 %wide point, 1198 mm from the tail

3.70length over width

397mm wide 12″ from the tail

10,851cm² of planform

Read off the 104 L outline · derived

53 %wide point, 1204 mm from the tail

3.60length over width

409mm wide 12″ from the tail

11,257cm² of planform

Read off the 112 L outline · derived

53 %wide point, 1209 mm from the tail

3.45length over width

428mm wide 12″ from the tail

11,845cm² of planform

Read off the 119 L outline · derived

53 %wide point, 1220 mm from the tail

3.36length over width

442mm wide 12″ from the tail

12,401cm² of planform

Rocker of the 74 L · scaled from the 94 L measured

45 mmtail rocker, at the tip

29 mm12″ from the tail

47 mm12″ from the nose

128 mmnose rocker, at the tip

508 mmflat to within 3 mm, from 43 % to 66 % of the length

55 %of the length to the lowest point, from the tail

111 mmat its thickest, 42 % from the tail

22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 84 L · scaled from the 94 L measured

45 mmtail rocker, at the tip

30 mm12″ from the tail

48 mm12″ from the nose

129 mmnose rocker, at the tip

511 mmflat to within 3 mm, from 43 % to 66 % of the length

55 %of the length to the lowest point, from the tail

121 mmat its thickest, 42 % from the tail

22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 94 L · measured

45 mmtail rocker, at the tip

30 mm12″ from the tail

49 mm12″ from the nose

130 mmnose rocker, at the tip

513 mmflat to within 3 mm, from 43 % to 66 % of the length

55 %of the length to the lowest point, from the tail

127 mmat its thickest, 42 % from the tail

22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 104 L · scaled from the 94 L measured

46 mmtail rocker, at the tip

30 mm12″ from the tail

49 mm12″ from the nose

131 mmnose rocker, at the tip

514 mmflat to within 3 mm, from 43 % to 66 % of the length

55 %of the length to the lowest point, from the tail

136 mmat its thickest, 42 % from the tail

22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 112 L · scaled from the 94 L measured

46 mmtail rocker, at the tip

30 mm12″ from the tail

50 mm12″ from the nose

132 mmnose rocker, at the tip

516 mmflat to within 3 mm, from 43 % to 66 % of the length

55 %of the length to the lowest point, from the tail

139 mmat its thickest, 42 % from the tail

22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

Rocker of the 119 L · scaled from the 94 L measured

46 mmtail rocker, at the tip

31 mm12″ from the tail

51 mm12″ from the nose

133 mmnose rocker, at the tip

518 mmflat to within 3 mm, from 43 % to 66 % of the length

55 %of the length to the lowest point, from the tail

141 mmat its thickest, 42 % from the tail

22 mmlonger along the bottom curve than flat

Lay this rocker over other boards

True proportions · dots at 10 mm and 12″ in from each tip · bracket: flat to within 3 mm · Measured on Duotone's photo of the 94 L. Tail end set by Claude, not checked by a person.