These fantastic Split Fins from ATOMIC deliver more propulsion with less drag and kick with less effort. Reducing the stress and strain of the kick results in greater sustained speed, power and comfort.. Features of these awesome fins include: Scuba Lab Testers Choice.. Independent testing has also confirmed that the SplitFin design significantly reduces air consumption Easy kicking fins that deliver high thrust, speed, and efficiency with a comfortable, low frequency kick cycle Made from a soft high-performance thermoplastic rubber material This unique material enables divers to experience the same performance as the standard Atomic Split Fins while requiring even less physical effort Semi-rigid battens set in the soft elastomeric blade controls the precise wing shape to optimize thrust and reduce drag The split blade deflects with the slightest kick to form a pair of wings that slice through the water with reduced drag, propelling you forward Thin, yet strong and highly flexible hinge points between the semi-rigid battens causes the blade to react quickly and efficiently to the slightest kick Contoured to fit your foot without stress points, with semi-open toe for added comfort Internal sole plate creates rigid platform beneath the foot for greater power transfer to the blade yet allows soft, comfortable foot pocket Totally new, patented buckle system design features easy.