Futures Rasta Signature "Reverse 3/2" Twin + 1 fibreglass fin set, designed for twin fin surfboards. 

Performance benefits of the 3/2 reverse twin + 1
The 3/2 Reverse Twin +1 is a speed generating fin, maximising water attachment over multiple planing surfaces, resulting in lift and hold. This unique foil keeps the fin engaged through turns, and creates speed exiting turns.
"Reverse" refers to the fin toe angle which straightens only in the tip. This creates two separate foil surfaces, one at the base of the fin and one at the tip - both featuring Future’s proprietary Vector Foil. This unique foil keeps the fin engaged on rail, creating drive, speed and grip.
“3/2” refers to the twist in the fin foil through the top third of the fin, which adds an additional 3 degrees of cant and 2 degrees less toe.
The cant at the fin base is 4 degrees, transitioning to 7 degrees at the tip, which makes the fin feel looser. The toe at the fin base is in respect to the box placement, transitioning to 2 degrees less at the tip, giving a tight and engaged feel.
The Futures "Vector Foil" features a concave surface on the inside of the front fins, increasing surface area, water attachment, and lift.
The Reverse 3/2 complements the Vector Foil with an extra 3 degrees of cant and reverses with 2 degrees of outwards toe, creating a twist to the foil that keeps the fin engaged through turns.
The added benefit of a "Scimitar Tip" (a flattened edge at the fin's trailing end), is a tight turning arc by reducing the template's length. This complements the 3/2 foil's lift and speed design, enhancing the feeling of release from turns while maximising the foil properties throughout the fin's template.

• Size: Medium Twin Fins (5.14" height x 4.6" base) / Small Centre Fin (3.37" height x 3.38" base)
• Fin Type / Set Up: Twin + 1 / 3 Fin Set
• Colour: Smoke-Grey
• Template Category: Neutral - all around, versatile
• Ride Number: Speed generating
• Construction / Technology: Fibreglass

Traditional fibreglass (FG) fins are made by laying up multiple layers of fibreglass cloth and resin and then cutting and foiling the fibreglass fin shape. FG fins are strong and can be made as stiff, or with a flex pattern as required. They provide stability for powerful surfers in all conditions.
Combined with their flex characteristics and lightweight nature, FG fins are an ideal all-round fin option.