Material These swimming flippers use a combination of sturdy plastic and flexible rubber, providing a durable blade with a balance between strength and ease of movement in water. Function Designed to improve propulsion during water activities, these dive fins help you move faster and with less effort while swimming or snorkeling. Design and fit Openheel shape with an adjustable strap for a secure fit. They work securely on bare feet or on thin neoprene socks for added comfort. This design is intended for adults. Use and compatibility Suitable for recreational swimmers and snorkelers, these diving fins enhance mobility in pools, lakes, or calm coastal waters. Benefits at a glance Enhanced propulsion for faster, more efficient swimming or snorkeling Durable construction from plastic and flexible rubber Comfortable, adjustable openheel design Versatile fit with bare feet or thin neoprene socks Ideal for adult users in a variety of calmwater environments Use scenarios 1) Pool training or casual swimming where you want to improve kick strength and overall speed. 2) Snorkeling in a calm bay or nearshore area to cover more ground with less effort. 3) Recreational swimming in a lake or calm coastal waters where stable, adjustable fins enhance mobility.