Polypropylene multifilament (PPM) ropes are soft; hold knots well, and are suitable for activities like camping and yachting.
 
Polypropylene multifilament rope is a type of synthetic rope made from multiple strands of polypropylene fibers that are twisted or braided together. The fibers are thin and fine, creating a rope that has a soft feel and is flexible.
 
Their softness makes them suitable ropes for cable railings and industrial uses. They consist of a stronger kind of polypropylene composed of thin, soft fibers which looks similar to nylon. The basic colour is white.