JS Industries Hydroglass Upright Thruster - FCSII Safe These fins are stiff and

These fins are stiff and are widely used by pro-level surfers because the integrity of the flex is maintained under immense force

6'8" x 20 1/2 x 2 5/8 (40L)

gloves and a hood

Construction: Epoxy Lam

2X stringers - increase board strength and maintain rocker

JS Industries Hydroglass Upright Thruster - FCSII Safe These fins are stiff andThis fin provides ability for tight turning manoeuvers and gives immediate speed generation in weaker conditions. Best in beach break style waves for pivotal turns and pocket surfing. 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.