Part number: A-PB01000-000
- Fresh air: oxygen flows in the top & Co2 expels out the bottom
- No gurgling: no water comes in the top vents, only air, due to Powerbreather innovative Membrane technology
- Sport PB0100 not Intended for flip turns in pool or choppy open. See lap or wave editions
- US at (Triathlon) legal (unless otherwise deemed by race director)
- Open water swimming for freestyle, breast, butterfly and side stroke