Power Speed Vents provide a high intensity training of the respiratory muscles. Designed for performance to help with muscle training – as used by Jan Frodeno.
This is a standard length – suitable for pools and calm open water.
There is no SPEED VENT Power Long – please use the SPEED VENT Medium Long.
SPEED VENT RESISTANCE
SPEED VENT easy for relaxed, natural breathing while swimming or active snorkeling-diving.
SPEED VENT medium for a moderate intensity training of the respiratory muscles.
SPEED VENT power for high-intensity [strength/ tension] muscle training.