Futures Rasta Alpha Twin + 1 Fin Set Fin Size:Twin The obvious outline change is

The obvious outline change is the tail going to a squash from the round tail

the O'Riginal leaves your shoulders free for unrestricted paddling

and it is still the most popular single fin design there is due to it's all-around and well-balanced performance

padded rail protection

Futures Rasta Alpha Twin + 1 Fin Set Fin Size:Twin The obvious outline change isThe Rasta Twin + 1, built in Alpha construction, features the Futures Fins V Foil, allowing for smooth rail to rail transitions. The upright design and Speed Generating foil will bring an added level of performance to any Twin + 1 board. With Rasta's positive ecological outlook on the environment, the folks at Futures Fins are stoked to offer his template in the Alpha construction. Fin Size Detail Height Base Area Foil Side Fins 5. 14" 4. 60" 19. 76"