arena Swim Snorkel Pro Designed for more experienced swimmers It's extremely stable at high speed thanks to its hydrodynamic design The design NOT only enables you to maintain an effective swimming technique but also an extremely efficient style when performing strength sessions in the water It can be combined with elite hand paddles and powerfin pros for performing drills aimed at developing your strength in the water The swim snorkel Pro includes two different size snorkel exhaust caps to regulate aerobic conditioning