Amish Outfitters Spectra Planer Board Line is a Spectra fiber line. Spectra is made to be out in the weather and is not as susceptible to rotting as Dacron lines are. This line is excellent for use with the hard pulling Amish Outfitters Plastic Planer Boards (Sold separately). Amish Outfitters Spectra Planer Board Line is white in color.