$80.99 (as of 09/11/2019 01:29 PST details )
Features:
- Advanced Resistance Zip System allows for variable levels of resistance specific to swim stroke and distance.
- Increased intensity places more demand on key muscle groups and builds aerobic endurance.
- Remove resistance to boost speed and stroke rate.
- Applicable for fitness swimmers, competitive athletes and triathletes.
- Great for all four swim strokes butterfly, backstroke, breaststroke and freestyle.