Long-length speed vent for Powerbreather snorkel with minimal breathing resistance for easy, natural breathing during swimming and active snorkel diving without additional respiratory muscle training. Ideal for recreational and fitness athletes who want to practice swimming as a recreational sport, as well as for snorkel divers or competitive swimmers and triathletes who do not want to train their respiratory muscles during swimming training. Available in blue, pink and grey to match your Powerbreather model.