Designed specifically for the ULTRA™ and NAUTICAL GO boards, the 5" Semi-Flexible Universal Side River Fin Set is your go-to for shallow water or river environments. The low-draft design provides enhanced maneuverability, while the width of the fin delivers improved tracking. 

Degree of Flexibility: 2 out of 5. 

*Set includes two fins

*Compatible with Twin Fin flip-lock fin boxes 

Compatible with ULTRA™ and NAUTICAL GO paddle boards (NOT Compatible with BLACKFIN, iROCKER or NAUTICAL Original 3 Fin flip-lock fin boxes)

*Non-tether fin