Zoggs Four Stroke Positive Drive Fins Uniquely designed for all four strokes. Zoggs Fins are great training aids that help build stronger muscles in a shorter time frame by creating extra resistance when kicking through the water - build strength and increase the work-rate whilst swimming. - Blade specifically designed to provide superior propulsion and power - Offset foot pocket transfers natural foot power into "positive drive" - Increased foot and ankle flexibility for increased propulsion - Designed to broaden the front of the foot and reduce pressure on the instep and toes

Zoggs Silicone Blue Fins Zoggs Fins are great training aids that help build stronger muscles in a shorter time frame by creating extra resistance when kicking through the water - build strength and increase the work-rate whilst swimming. - 100% moulded ultra-comfort short blade silicone training fins - Specifically designed blade for optimum propulsion and performance