Fin size: XL; US (9.5-11.5); EUR (42-44) - Ideal for warm water - Lightweight design for easy travel - OCT (Optimized Channel Thrust) Fin Technology for optimal water channeling at all times providing increased efficiency and power - Angled design for maximum kick efficiency producing maximum forward motion (lift) with less effort - Hydrodynamic ribs minimize lateral movement - Creates less strain on the leg muscles compared with traditional fins, reducing the diver’s fatigue and subsequent air consumption - Soft molded foot pocket for added comfort - Contents: One pair of fins