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The Positive Drive Fins (PDF's) from FINIS use a unique ellipsoidal blade to generate correct propulsion in all four swim strokes. The unique asymmetrical blade design allows the swimmer to build power while promoting a natural inward supination kick style for butterfly, backstroke, and freestyle swimming strokes. The PDF's use an ergonomic foot pocket to comfortably place feet in an ideal swimming position. The heel strap secures the fin in place while you swim, allowing feet to flex more naturally. A closed-toe design provides superior energy transfer from leg to foot. The PDF's will increase leg strength, foot speed, and ankle flexibility for all four swim strokes, making the fins great for individual medley training.

UNIQUE BLADE DESIGN: Ellipsoidal blade generates correct propulsion in all four swim strokes – even breaststroke

ASYMMETRICAL FINS: Blade shape promotes a natural kick cycle

EFFECTIVE TRAINING: Increases leg strength, foot speed and ankle flexibility –Great for training the individual medley event; Safely build a powerful breaststroke kick

ERGONOMIC FOOT POCKET: Comfortably places feet in an ideal swimming position

ADJUSTABLE HEEL STRAPS: Create a customized fit that secures fin and allows feet to flex more naturally