This is the best "continuous control line" available. Made primarily from Dyneema with light polyprop core. The colour marker is polyester. So there are no cleat hungry aramids in this rope. Kind on your hands and cleats. 

Very low water take up to keep your boat as light as possible. It stays soft and flexible (and re-splicable) well into old age.

Comes in 2 colours and 4mm dia.