Select S1 Pro XL Deep Tuttle Windsurfing Fin Deep Tuttle Size:43 while the RF 71 is

while the RF 71 is designed for maximum speed

Protect your ribs from chaffing and wax irritation caused by paddling

19 Wave / Freeride

Available in both traditional and aero fit

Continous concave

Select S1 Pro XL Deep Tuttle Windsurfing Fin Deep Tuttle Size:43 while the RF 71 isThe S1 Pro XL is a full carbon race slalom fin designed for high performance and speed. It features a stiffer fins body and an even more blocked twist to provide with a strong foil effect. Key Features: Technology: Hand finished, custom moulded pre preg carbon Rigid fin base for stable power transmission Carbon patch for more stability at high speed Straight leading edge for smooth power control Very sharp trailing edge for less drag and enhanced