Unifiber Back fin US
SUP fin
Are you looking for a 21cm US box fin for your SUP board? Then the Unifiber Back fin US is the ideal choice for you!
The Unifiber Back fin US 21cm can be used on any inflatable SUP board with a US box. Besides that, this fin is very flexible and is designed for more safety while maintaining the performance.
Features of the Unifiber Back fin US:
- US box
- 21cm
- Highly flexible
- Back fin







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