A silicone coating on the Flatline series is 25% lighter than PVC, resulting in a lighter weight wakeboard line. This silicone coating increases buoyancy and keeps the rope visible above the water. Constructed with a flat 1/4" zero-stretch Dyneema line for extra strength. Smooth, flat coating on the rope eliminates knots and provides a soft feel. 4,000-lb. tensile strength allows a strong pull without recoil.