Glow in the Dark!
Sure there is paracord with glow in the dark fleck added to provide some luminescence, but even better is ParaGlow.
ParaGlow has the same seven strands of two ply nylon that regular 550 Type III Commercial paracord has for strength, but ParaGlow features a glow-in-the-dark polypro cover. Perfect, for glow in the dark paracord crafts, or guy lines for tents.
ParaGlow is available in white, and must sit in light to charge for approximately six hours before it will glow. Once charged, ParaGlow will glow for approximately 3 hours.
ParaGlow has a tensile strength of approximately 400 pounds.