SUMi

- By utilizing various material's stiffness and innovative structural arrangements,SUMi was designed to produce propulsion efficiency.
- The end result is a pair of fins which is not only easy to kick with, but excellent momemtum is created to quickly propel the diver forward.
- The fin's foot pocket fitting is the result of our extended research and manufacturing experience.
- This is an often neglected criterion when divers choose their fins. We are confident that SUMi will be one of the most comfortable fins that people put on.
- On top of the fin blade, there are 6 water channelling guides to direct large amount of water backwards and the 22º blade-to-foot angle provides the best kicking efficiency.
- You may upgrade to IST Silicone bungee fin strap system(FS15) with super simple to use and no adjustment needed.