e 9-9.5) ANGLED BLADE DESIGN FINS: DiVLMT full foot fins has angled blade design, the streamlined design allow water to flow smoothly through the flippers, accelerate water flow, greatly reducing the burden of diving. FULL FOOT & ERGONOMIC: With soft, ergonomic foot pockets, this adult diving long fins can completely surrounds the diver's feet, sticky fits well and doesn't fall off easily, no need to adjust the heel. Unlike adjustable snorkel fins, full foot snorkel fins usually no need to wear diving sock, easier to dive. ANTI-SKID DESIGN & PORTABLE: The bottom of the long flippers are designed with multi-layer symmetrical anti-slip strips, inside pocket has rubber dots, a free mesh bag make you easier to carry. PREMIUM MATERIAL & PROPER FLEXIBILITY: The full foot snorkel fins has good anti-deformation and corrosion resistance, durable & flexibility. When the fins are too soft it was hard to help divers move quickly and will quickly consume a diver's physical strength, proper flexibility of the fins can help divers enjoy diving more easily.