Discover the power of the Twin Jet Max split fin by SCUBAPRO. The Twin Jet Max Fin features a patented split-hydrofoil shape to deliver optimum power with minimum effort, plus dual-compound construction, which enables SCUBAPRO to fine-tune performance and optimize maneuverability and diver comfort. | The spring strap allows you to easily and quickly slip on your fins. No struggling with adjustments or getting a twisted strap over your boots. The spring strap system simply rolls onto your heel and keeps the fin snugly, yet comfortably, on your foot. Its added durability and sturdiness make your Twin Jet Max fins fit for a lifetime. | There are three primary variables to consider when selecting a fin: power, efficiency and fit. The more water a fin moves, the greater its kicking power. Furthermore, fins that transfer a greater percentage of a diver's kicking effort into forward motion are considered to be more efficient. TWIN JET MAX FINS do just that!