A Speedy Weedy fin delivers Full performance in reduced waterdepths. Often shallows comes with seagrass and other water debris which challenge conventional fins. The SW works amazingly well, specific low drag, high lift foil sections with our unique profile delivers a fin, suitable in fully weeded conditions, in flat or choppy water, for both slalom and speed oriented sailing. You get a fin that lifts the board and enables a railed trim, and proper pointing ability. Downwind control is exceptional! Our SW is available in sizes from 34 cm down to 12cm. typical sizes: Board size Volume litres Width cm Typical fin size range SW fin size Extra Large >145 > 85 46-50 32-34 Large 130-145 82-85 43-46 30-32 Medium Large 120-130 75-78 40-44 27-30 Medium 115-120 70-73 36-39 24-27 Medium Small 105-110 66-69 34-36 23-25 Small 90-100 60-62 31-33 20-22 Extra Small 70-85 56-59 27-30 18-20 Speed Large