Description: Material: Made from silicone material, these swim training fins ensure comfort and durability Swimming Fins: These long floating swim fins are designed to provide maximum buoyancy and forward propulsion, making them an essential piece of swimming gear for both men and women Training Enhancement: The long floating design elevates your legs to the water's surface, reducing drag and improving body alignment during swim training sessions Anti Slip Design: The bottom of the fins is equipped with anti slip designs to increase friction and prevent slipping underwater. This ensures secure and confidence while exploring aquatic environments Versatile: Suitable for swimmers of all ages and skill levels, these fins offer feedback to help you extend your kick effectively Specification: Material: Silicone Size Chart: Size XXS: Inner Length and Width: 18cmx7cm/7.09inchx2.76inch, Outer Length and Width: 23.5cmx11.6cm/9.25inchx4.57inch Size XS: Inner Length and Width: 20cmx7.7cm/7.87inchx3.03inch, Outer Length and Width: 26.1cmx12.8cm/10.28inchx5.04inch Size S: Inner Length and Width: 22cmx8.6cm/8.66inchx3.39inch, Outer Length and Width: 28.7cmx14.1cm/11.30inchx5.55inch Package Includes: 1 Pair Swim Training Fins   Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.