El tubo de entrenamiento Focus permite al nadador centrarse en la técnica de brazada sin tener que girar la cabeza hacia un lado para respirar.
MP Michael Phelps Focus Swim Snorkel, Black Neon : Sports & Outdoors
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Aqua Sphere MP Michael Phelps Focus Adult Swim Snorkel for Lap Swimming - Navy + White, Regular Fit - Increase Cardiovascular Strength & Lung Capacity, Large, AQA-191649059945 : : Sports, Fitness & Outdoors
Phelps Focus Centre Snorkel - Pink & White
Ad2outlet - AQUASPHERE Snorkel Frontal by Michael Phelps
MP Michael Phelps Focus Swim Snorkel, Black Neon : Sports & Outdoors
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