POWERBREATHER Sport

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