Unraveling Cloak

When you take a Magic action to remove the button from the hood of this cloak, the cloak's fabric unravels behind you wherever you go, leaving a continuous thread. Other creatures can see the thread only if they take the Search action to look for it and succeed on a DC 15 Wisdom (Perception) check. The cloak ceases to unravel after 100 miles or if you take a Magic action to rebutton the cloak. If you teleport while the cloak is unraveling, any unraveled thread is immediately destroyed.