Durable, light and affordable fin, ideal also for intensive use in Diving Centers. Stratos 3 passed the most extreme stress and anti-shock laboratory test. The best all-around full foot fins for diving. With the power for scuba diving and the sleek lines of a snorkeling fin, the Stratos 3 is an excellent choice for warm water. Torsion Energy Point f a 3-materials side rib area that helps the blade flexing. The bending point has been moved backward, allowing more powerful kick with less efforts. Ergonomic Foot Pocket f design and reinforced soft material allow a great comfort. The fin can be worn bare foot or with sock. Grip Effect f special finishing inside the foot pocket ensures high stability. Blade made of strong and elastic techno-polymers. 4 channel structure for a better water canalization along the blade. Side wings enhance swim performance and stability. Rubber side ribs in customized Aqualung compounds very elastic, robust, resilient, and anti-scratch. Stretched right up to the heel lower sole, more comfortable to prevent cramps. Anti-slip rubber pads improve stability on slippery surfaces. Fins are available in multiple sizes and colors.