Description: Made of TPR thermoplastic rubber material , providing a comfortable environment for your feet. Designed with open toe, water can flow out quickly and your feet feel comfortable and breathable. Perfect amount of flexibility and anti-slip sole to help prevent cramps and reduce fatigue. Reducing resistance drainage to improve swimming speed and correct your gesture. Perfect for snorkeling or swimming. Specification: Material: TPR Thermoplastic Rubber Size Chart: Size S: EU 36-38 (LxW: 52.6x17.2cm/20.71x6.77inch) Palm Length: 29.9cm/11.77inch Size M: EU 39-41 (LxW: 55.1x18.4cm/21.69x7.24inch) Palm Length: 31.6cm/12.44inch Size L: EU 42-44 (LxW: 58.2x18.6cm/22.91x7.32inch) Palm Length: 33.6cm/13.23inch Size XL: EU 45-46 (LxW: 61.6x19.7cm/24.25x7.76inch) Palm Length: 35.6cm/14.02inch Package Includes: 1 Pair of Flippers Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. There is a shoe support inside the flippers, please take out the shoe support before use.