Cressi Frog, black, L/XL

The Frog's bottom footpocket design keeps the fin on the correct axis with your leg (owing to the blade angle) for a smoother and more powerful kick with less effort.While the footpocket may look a little odd at first glance, it feels great and works beautifully. Running nearly the fin's length are high, rubber-like ridges on the blade's outside edge. A pair of smaller ribs made of the blade material run down the fin's center. These stiff ribs channel water onto the blade. As water streams down the leg, it continues in a smooth transition across the length of the fin. There is no water hydroplaning or skidding on either the up or down strokes. No hydroplaning means better power and control for the diver. Each kick's up and down strokes thus become power movements and drag is minimized. This innovative footpocket design further aids in control and comfort. The pocket's top edge is lined with comfortably soft, curved, rubber-like technoplastic. It's bottom portion extends back about four inches, giving support under all or most of your foot, depending upon your foot size. When your whole foot is supported, more of the power from your leg and foot is transferred to the kick. The entire footpocket is lined for protection from hard plastic edges. Small bar-like treads on the bottom provide traction when standing on slippery surfaces. The plastic quick-release buckles are easy to operate, even with gloves, have a sleek finish and reliably lock the strap in place. They also rotate an impressive 300 degrees. No matter how high your arch or how high your heel strap is worn. A pair of medium-large Frog fins is about 8.5 inches wide, 25 inches long overall and made of ethylvinylacetate, which is simply a state of the art plastic that has good memory. The memory allows the fin to snap back into its original position or angle without "going flat" Without inducing leg cramps. Frog fins are negative, settling to the bottom and floating vertically in the water, footpocket down.