Built specifically for our Black Baron and Big Baron. It's high area makes it able to be pushed hard through turns, with a wide base and full tip to give hold and drive. Available in FCSII and Single Tab. Our HydroGlass fins are made with polyester resin and 34 layers of glass. This construction is great for generating speed and providing drive. The consistent flex allows for smooth rail-to-rail surfing during turns without losing speed. Our HydroGlass fins are built in partnership with FCS and MFC Hawaii who have devoted more than 30 years now to creating the best fins possible, by innovating at every stage of construction. They tirelessly work towards the title of world's fastest fins, which makes them the perfect partner for the world's fastest surfboards. From our extensive range of boards including small wave fishes, high performance shortboards and big wave guns, to these fins, JS is always Built For Speed.
Volume Reference Guide
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| Weight | Beginner | Intermediate | Advanced | Pro |
|---|---|---|---|---|
|
80 lbs
36 kg
|
23.9L | 19.9L | 16.75L | 15.9L |
|
85 lbs
38.25 kg
|
24.4L | 20.7L | 17.4L | 16.6L |
|
90 lbs
40.50 kg
|
25.7L | 21.5L | 18L | 17.20L |
|
95 lbs
42.75 kg
|
26.5L | 22.1L | 18.5L | 17.7L |
|
100 lbs
45 kg
|
27.2L | 22.6L | 19L | 18.2L |
|
110 lbs
49.5 kg
|
29.2L | 24.4L | 20.5L | 19.5L |
|
120 lbs
54 kg
|
31L | 25.9L | 21.8L | 20.7L |
|
130 lbs
58.5 kg
|
31.8L | 26.5L | 22.3L | 21.2L |
|
140 lbs
63 kg
|
33.3L | 27.8L | 23.3L | 22.2L |
|
145 lbs
65.25 kg
|
34.5L | 28.8L | 24.2L | 23L |
|
150 lbs
67.5 kg
|
35.7L | 29.8L | 25L | 23.8L |
|
155 lbs
69.75 kg
|
36.9L | 30.8L | 25.8L | 24.6L |
|
160 lbs
72 kg
|
38.1L | 31.9L | 26.7L | 25.4L |
|
165 lbs
74.25 kg
|
39.3L | 32.8L | 27.5L | 26.2L |
|
170 lbs
76.5 kg
|
40.5L | 33.7L | 28.3L | 27L |
|
175 lbs
78.75 kg
|
41.7L | 34.7L | 29.2L | 27.8L |
|
180 lbs
81 kg
|
42.9L | 35.7L | 30L | 28.6L |
|
185 lbs
83.25 kg
|
44L | 36.7L | 30.9L | 29.4L |
|
190 lbs
85.5 kg
|
45.2L | 37.7L | 31.7L | 30.2L |
|
195 lbs
87.75 kg
|
46.4L | 38.7L | 32.5L | 31L |
|
200 lbs
90 kg
|
47.6L | 39.7L | 33.4L | 31.8L |
|
210 lbs
94.5 kg
|
50L | 41.7L | 35L | 33.4L |
|
220 lbs
99 kg
|
53.9L | 44.9L | 37.7L | 36L |
|
230 lbs
103.5 kg
|
57.9L | 48.2L | 40.5L | 38.6L |
|
240 lbs
108 kg
|
62L | 51.7L | 43.5L | 41.4L |
|
250 lbs
114 kg
|
66.1L | 55.2L | 46.5L | 44.2L |
|
260 lbs
118 kg
|
70.2L | 58.7L | 49.5L | 47L |
|
270 lbs
123 kg
|
75L | 62.7L | 53L | 49.8L |
Volumes are a general starting guide. Your ideal volume can shift based on board outline, fitness, wave conditions, and personal preference. Still unsure? Contact us and we'll help you dial it in.