- Fixed headband and centered construction for maximum stability
- 2 mouthpieces to fit all swimmers a customized use
- 2 breath control caps for different levels of a lungs work-out
- Center mounted headband makes the Pro II Ideal for fast fin-swimming and flips turns
- New liquid silicone headband strap is soft and flexible making it easier to adjust to head and over swim caps.
- New designed headband strap quick-release clip makes for quick adjusting of strap length for custom sizing.