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Positive Drive Fin
Employ a unique ellipsoidal blade to generate correct propulsion in all swim strokes
Traditionally fins are not made for breaststroke, but the asymmetrical shape and adjustable heel strap allow the swimmer to safely build power in the breaststroke kick
The short and wide blade design also promotes a natural inward supination kick style for backstroke, butterfly, and freestyle
Use an ergonomic footpocket to comfortably place the feet in the ideal swimming position, and the heel strap to secure the fin, allowing the feet to flex more naturally
A closed-toe construction provides superior energy transfer from the leg to the foot
The Positive Drive Fins (PDF's) use a unique ellipsoidal blade to generate correct propulsion in all swim strokes. Traditionally fins are not made for Breaststroke, but the asymmetrical shape and adjustable heel strap allows the swimmer to safely build power in the Breaststroke kick. The short and wide blade design also promotes a natural inward supination kick style for Backstroke, Butterfly, and Freestyle. The PDF's use an ergonomic foot pocket to comfortably place the feet in the ideal swimming position, and the heel strap to secure the fin, allowing the feet to flex more naturally. A closed-toe construction provides superior energy transfer from the leg to the foot. The PDF's will increase leg strength, foot speed, and ankle flexibility for all four competitive swim strokes, making the fins great for training the Individual Medley event. So if you want a great Cardiovascular Workout the PDF's are what you're looking for.