Adjustable Design: Adjustable open heel design for easy sharing. The diving fins are suitable for different foot shapes and sizes, making it easy for family or friends to share equipment. Comfortable to Wear: The short and powerful fins provide good propulsion, reduce foot fatigue and prevent cramps. Thanks to the extremely ergonomic shape, there is a lot of comfort, even after prolonged use. High-Quality Material: Soft TPE material, comfortable to wear and easy to use. Not easy to deform, lightweight, corrosion-resistant and durable. Even barefoot, it will not hurt your feet. Suitable Size: This fin is a lightweight travel product. Its small size fits easily in the suitcase without taking up more space. Whether you are swimming in the pool, swimming in the sea or snorkeling, it is a practical swimming aid. Product Specifications: Material: TPE Size: S: Adjustable size 34-38. L: Adjustable size 39-43. Package Contents: One pair of freediving fins. Attention: 1. Due to different light and screen settings, the product's color may be slightly different from the picture. 2. Please allow slight dimension difference due to manual measurement. [Friendly Tips] Returns without reason will cause unnecessary resources and energy consumption. Please contact our customer service if you encounter any problems after receiving your order and we will definitely do our best to help you solve it. If you are still not satisfied, a return after communication is never too late，Thanks again~