Spyderline is an ultra strong all-purpose dinghy control line. The twill pattern cover is made from 100% polyester and the core is 100% Dyneema SK75 fiber. Very strong with extremely low stretch, Spyderline is perfect for use in small leads, micro blocks, and purchase systems. Sizes over 1.8mm have braided cores allowing for additional performance modifications. Use for cunninghams, vang systems, outhauls, halyards, traveler lines, trapeze lines, topping lifts or twings.