Anti-Weed Lessacher Weed Blade G10 28 cm Power Box
Slash Weeds. Keep Speed. Feel Normal.
Anti-Weed Lessacher Weed Blade G10 – High-Speed Weed Fin
Say goodbye to drag and hello to flow. The Lessacher Weed Blade G10 is our most advanced weed-fighting fin yet—developed in collaboration with anti-weed legend Wolfgang Lessacher. This blade’s stiff, asymmetrical G10 profile powers you through even the weediest sessions with speed, lift, and surprising agility.
With a forward-set leading edge and refined shape, it’s faster and more natural-feeling than the original FWD model—giving you that “normal fin” control in weed-heavy spots.
Why choose the Weed Blade?
✔ High-Speed Anti-Weed Profile – Slices clean while delivering serious lift
✔ Forward Rake Design – New shape improves glide and top-end speed
✔ Asymmetrical G10 Power – Generates more lift than symmetrical weed fins
✔ Feels Like a Standard Fin – Keeps you in control, not fighting the board
✔ Power and Tuttle Box Options – Fits your favourite setup
| Size (cm) | Surface area (cm²) | Power Box weight | Tuttle Box weight |
|---|---|---|---|
| 24 | 295 | 0.516 kg | 0.578 kg |
| 28 | 337 | 0.613 kg | 0.694 kg |
| 32 | 405 | 0.710 kg | 0.810 kg |
| 36 | 460 | 0.806 kg | 0.926 kg |
| 40 | 550 | 0.903 kg | 1.041 kg |
Includes a protective fin cover.
Important sizing tip:
Choose a Weed Blade that’s 8–10 cm shorter than your normal fin.
Example: Normally ride a 36 cm? → Go with the 28 cm Weed Blade
Crush Weed. Keep the Speed.
Lessacher Weed Blade G10 – the power fin for fast, clean sessions in messy conditions.
Windsurf Fins Knowledge
Ask the Windsurf Expert
Fins Fundamentals
What causes spin-outs and how can they be prevented ?
A spin-out occurs when the water flow along the fin breaks off, causing the board to slide sideways or at an angle to your sailing direction. This happens when the sideways force from the sail through your body to the fin becomes too great.
To prevent spin-outs: choose the right fin length and angle for your sail size, and manage back foot pressure.
To recover: shift weight to the mastfoot while realigning the back foot with your direction of movement.
Why do some fins perform better upwind than others?
Upwind performance in fins is determined by three main factors:
- Surface area: Larger fins provide more lift and better upwind capability
- Rake angle: More upright fins (less rake) generally perform better upwind
- Profile shape: Fins with efficient foil sections create more lift with less drag
The balance between these factors determines how well a fin will perform when sailing upwind.
A spin-out occurs when the water flow along the fin breaks off, causing the board to slide sideways or at an angle to your sailing direction. This happens when the sideways force from the sail through your body to the fin becomes too great.
To prevent spin-outs: choose the right fin length and angle for your sail size, and manage back foot pressure.
To recover: shift weight to the mastfoot while realigning the back foot with your direction of movement.
Upwind performance in fins is determined by three main factors:
- Surface area: Larger fins provide more lift and better upwind capability
- Rake angle: More upright fins (less rake) generally perform better upwind
- Profile shape: Fins with efficient foil sections create more lift with less drag
The balance between these factors determines how well a fin will perform when sailing upwind.
Fins Selector
Weed Slasher
A forgiving rake for easy sliding and slashing through weedy patches. The Weed Slasher offers great control and performance and all while keeping the budget-conscious weekend warrior in mind.
Anti-Weed Lessacher Weed Blade
Our newest weapon to dodge the "evil green". We again teamed-up with ‘Mr. Weed-Slasher’ - Wolfgang Lessacher - and created a lethal anti-weed line for spots infested with weed.
Freeride G10
A wide chord for straight-line stability and smart curve for jibes and turns.
G10 softer handling characteristics mean you benefit from the perfect balance of rigidity and forgiveness.
Wave G10
Your 4WD go-anywhere wave fin. A sideshore profile with stiffer twist and flex for higher lift and good onshore behavior too.
With G10 construction in all sizes, everything but your wallet takes a knock.
Bump & Jump
A forgiving rake for easy sliding and slashing through weedy patches. The Weed Slasher offers great control and performance and all while keeping the budget-conscious weekend warrior in mind.
Freestyle Pro
The G10 construction increases both performance and strength.
Happy at high speeds, with an amazing amount of pop, this model offers great grip for new-skool power moves and easily bounces into doubles.
Unifiber Fins: Engineered for Reliability
Built to Last
We build fins you can count on, day after day. No complicated choices or technical confusion - just dependable gear that lets you focus on enjoying your time on the water.
Tested and trusted by windsurfers like you, our fins deliver the stability and control you want, without the fuss.
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