Futures Mid 2 +1 Surf Fins The Futures MID 2+1 set is an XL size 2+1 thruster designed for high-performance surfing on your mid-length, longboard or SUP. The solid fiberglass construction provides a consistent flex pattern for stability and control. Template Category | Performance 2+1 Construction | Fiberglass Side Fins Center Fin Area 16.45 18.53 Height 4.96 5.32 Base 4.33 4.76 Foil FLAT SYMM