Rusty's rider approved everyday high performance round tail. Kevin Sullivan and Josh Kerr gravitates to this design for its versatility and precision through and above the lip. If you're a back-foot orientated surfer go with the Redline. :: Unisex > Surfboards. Recommended Wave Size: 3-6 feetFull Round Tail: Lends itself to fluid power surfing and seamless continuity\n through turnsFins: FCS thrusterRails: Feature a full radius at the apex for a neutral and forgiving surfboardDeep Single Concave: Designed for speed. Works well in fast. large and\n clean surfVolume: 25 litresThickness: 2.25''Width: 18.25''Length: 6'0''Construction: PUAbility level: Advanced Size: one size.