SK8
F-One's surf-feel front wing, refined for more glide, control and carving freedom. It stays loose and responsive across its speed range, and under a wing its high-speed glide and upwind ability keep the ride light. Size-specific high-modulus M40J layup, monobloc with the Titan 2 connection. Seven sizes from 550 to 1150.
Source: f-one.world · checked 2026-09-22
Front wings 7
Compare all sizes| Size | Area | Wingspan | Aspect ratio | Weight |
|---|---|---|---|---|
| 550 | 550 cm² | 670 mm | 8.2 | 930 g |
| 650 | 650 cm² | 725 mm | 8.1 | 990 g |
| 750 | 750 cm² | 775 mm | 8.0 | 1090 g |
| 850 | 850 cm² | 825 mm | 8.0 | 1200 g |
| 950 | 950 cm² | 870 mm | 8.0 | 1260 g |
| 1050 | 1050 cm² | 915 mm | 8.0 | 1390 g |
| 1150 | 1150 cm² | 960 mm | 8.0 | 1500 g |
Independent reviews
In-depth tests by riders and magazines, on their own sites. We link to them; the verdicts are theirs.
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Surfdocsteve Perspective on Cloud9, F-One, Unifoil and Ono Foils
Tested: F-One SK8 850, Unifoil Progression 140, Ono M800, Cloud9 wings
Pros
- F-One SK8 850: power-carves on rails with no yaw or pitch issues; turns better than a Mike's Lab 800
- Unifoil Progression 140: amazing low-end glide and low stall, pump longer by slowing down
- Progression 140 is the best of the group at pumping
Cons
- SK8 850 takes a lot more effort to pump
- Progression 140 feels its span and gets unstable turning at higher speed in bigger waves
Verdict: SK8 850 for powerful walls and radical turns; Progression 140 for small, mushy waves.
Pros, cons and verdict summarised by foil.guide from the article, fetched 2026-09-25