The Futures x Mayhem "Evil Twin" is a twin fin + trailer combination developed not just for the "Mayhem Evil Twin" surfboard, but for any twin fin. 
The template is an exact replica of the twin fins designed for the RNF (Round Nose Fish) close to 25 years ago. An upright fin, with a swept back tip, and plenty of area, providing drive and precise pivot. The keel fins are paired with a small trailer fin, which helps draw out turns and lends some stability and projection, yet retaining that free twin fin feel. 

• Size: Large / 75kg + 
• Fin Type / Set Up: Twin + 1 Hybrid Keel / 3 Fin Set
• Colour: Blue / Black
• Template Category: Hybrid keel - drive, projection
• Construction / Technology: Honeycomb

Honeycomb (HC) fins have a lightweight hexagonal foam core with reduced resin content, making HC fins lighter while keeping the fin stiff where it counts. The HC construction features a balanced flex pattern that provides a blend of lively and stable performance, making them a great all around performer in all conditions.