Surf Grip boots. Used only once. Surf Grip THERMO BLUE SOX SPLIT 3mm 3mm with brushed lining, so it's warm. Size is S, suitable for those around 23-25 cm. I'm selling these because my lifestyle has changed and I can't go surfing anymore. ■Features 1■ Stretch heat generation, heat retention, and insulation of Thermo BLUE, proven in wetsuits. ■Features 2■ The lining dries very quickly, with amazing quick-drying properties. ■Features 3■ Easy to turn inside out and dry, making it hygienic. ■Features 4■ Comfortable with brushed lining for smooth on and off and a comfortable fit. ■Features 5■ Direct feel of bare feet, allowing you to feel the board directly from your soles. ■Features 6■ Rubber on the back of the ankles for a better fit and significantly reduced water ingress. ■Features 7■ The toes are a split type with an independent big toe for grip. ■Features 8■ Made in JAPAN for reliability. ■Product: 2024 SURF GRIP "Thermo BLUE" 3mm SPLIT SOCKS ■Type: Cold protection socks for surfing, made in Japan ■Material: Thermo BLUE 3mm jersey ■Color: Black Type: Surf boots Gender: Unisex