best swim open heel snorkeling fins for kids
1)adjustable fins, ideal for sharing among family and friends or for rental departments. Designed for snorkeling, scuba diving, long swims.
2)Long lightweight and responsive blade. Easy-kicking blade responds well to any kicking style.
3)Blade extends from the top of the foot pocket for maximum surface area and for increase the propulsion force.
4)Fins stays in place against your foot despite the increase in hydro static pressure.
5)The ankle upper has 3 diversion holes and 4 diversion grooves. According to the optimized design of fluid mechanics, the efficiency of the ankle can be increased.