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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22
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Description
Duotone Fin Set Quad (Slot|Slot) (4pcs)Unlike generic multiuse fin concepts, the QUAD set is engineered as a dedicated, nocompromise quad system. Every outline, profile, and response characteristic has been purposebuilt for maximum control, drive, and agility in highperformance wave conditions. This is the same design philosophy trustedquietly but consistentlyby many World Cup professionals who rely on Kais custom fins to stay ahead of the pack. Now, were making this toptier performance
Unlike generic “multi‑use” fin concepts, the QUAD set is engineered as a dedicated, no‑compromise quad system. Every outline, profile, and response characteristic has been purpose‑built for maximum control, drive, and agility in high‑performance wave conditions. This is the same design philosophy trusted—quietly but consistently—by many World Cup professionals who rely on Kai’s custom fins to stay ahead of the pack. Now, we’re making this top‑tier performance available to everyone.
Shorter fins. Higher performance.
Proof of their level of efficiency is the fact that our fins are 1–2 cm shorter than comparable quad sets. This is made possible through our exclusive AI_FIN CAD software, which achieves a flawless profile transition in the critical tip area where the fin sweeps backward. The result?
- Radically enhanced maneuverability
- Great grip without being sticky
- Instant response in every turn
Premium materials. Maximum precision.
The center fin is CNC‑milled from black G10, an ultra‑dense, prepreg‑laminated fiberglass material renowned for:
- Outstanding durability
- Exceptional impact resistance
- Easy sandability to repair ground‑contact damage
This is the level of reliability and performance that serious wave sailors demand.
Choosing the right size
Select your QUAD set according to the recommendations below. Oversized fins create excessive tail lift, making your board feel sticky and harder to turn. Proper sizing ensures your board performs exactly as intended—loose, fast, and precise.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy