A quality centre fin is one of the most underrated upgrades you can make to a SUP board, and the SIC Mahi 9.0" is a genuine step up from the stock fins most boards ship with.

Built from a glass and carbon composite, the Mahi 9.0" is noticeably lighter and stiffer than a standard nylon fin, which translates directly into better tracking, more responsive steering, and improved glide efficiency on the water. The dolphin template is a versatile all-around shape that performs well across flatwater touring, recreational surf, and general paddling, making it a reliable everyday fin rather than a single-use specialist.

The standard fin box compatibility means it drops into a wide range of SUP boards without any fuss, and everything needed for installation is included in the box. For paddlers looking to get more out of their existing board without a major investment, swapping to a glass and carbon fin like the Mahi is one of the most cost-effective performance gains available.

• Size: 9.0" Mahi dolphin template
• Construction: Glass and carbon composite
• Fin box: Standard fin box compatible
• Includes: Fin, screw set, and fin key
• Intended use: Flatwater touring and recreational surf SUP