Description: Soft and comfortable, this diving training flippers ergonomic, not strangle feet, the bottom anti-slip design, making increased frictional force, in addition, it has a high toughness, making a powerful hit the water and speed. With excellent reverse bounce ability, this dive training flipper saves energy, making it ideal for freediving and deep diving as an aid to diving and swimming training. It is constructed of silicone material. There are 6 sizes of the diving training fins to choose from. It is suitable for diving, swimming and so on. Item Name: Diving Training Fins Material: Silicone Features: Ergonomics, Non-deformable, Strong Toughness Size Details: Size: 3XS, Foot Length: 16.5cm/6.5", Insole Length: 22.4cm/8.82" (Approx.) Size: 2XS, Foot Length: 17.5cm/6.89", Insole Length: 25.2cm/9.92" (Approx.) Size: XS, Foot Length: 21cm/8.27", Insole Length: 29.8cm/11.73" (Approx.) Size: S, Foot Length: 21.8cm/8.58", Insole Length: 31cm/12.2" (Approx.) Size: M, Foot Length: 23.5cm/9.25", Insole Length: 33.7cm/13.27" (Approx.) Size: L, Foot Length: 25.5cm/10.04", Insole Length: 35.9cm/14.13" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Pair of Diving Training Fins