These Sporti Essential Floating Swim Fins are perfect for recreational swimming or training! Made of natural rubber, these swim fins are more flexible than Silicone fins, providing for more freedom of movement. Features Improved fit and updated sizing Two-toned color design Longer blade to emphasize each kick Flexible foot pocket Closed ankle provides extra support Fins float to the surface Easy on/off Training Benefits Provide more propulsion with each kick, helping swimmers feel what it’s like to move at faster-than-normal speeds Useful for endurance work and building leg strength since the extra surface area creates more resistance Can help swimmers focus on stroke mechanics by letting them maintain momentum while concentrating on arm technique Details Material: 100% Rubber Best For: Technique drills, body position awareness, and strength conditioning Closure: Slip on Fit: Snug; if fins feel loose on the foot, try wearing swim socks for a more secure fit Country of Origin: Imported Notice This product may contain latex. Fins are not intended for walking on dry land and/or excessive bending, as fins may break or cause injury. A light coating of silicone oil and occasional white powder on the surface is normal for rubber products. It is used to protect the fins during storage, and can be easily washed off with soap and water if desired. Due to handling and packaging, the soft rubber foot pocket may sometimes appear slightly out of shape upon arrival. This temporary rubber has a natural 'memory effect,' and the fins will return to their normal shape with use.