Coppa 5000 Rope by FSE Robline has a Dyneema SK78 core and a 24-plait blended polyester and spun polyester cover. It is great for sheets on dinghies and sportboats. The Dyneema core has a high strength-to-weight ratio, wont absorb water and can manage significant working loads. It also has almost no stretch and low creep (rope distortion and elongation caused by extended static loads). The cover on this flexible line has good grip, feels soft in the hand and can be stripped and spliced. It comes in three diameters.