On Use:
All known travel routes, regardless of their restrictions, are available and free. This effect continues to expire in real time.
Swift Travel Unlocked
Free Passage
"All known travel routes, regardless of their restrictions, are available and free for a limited time."
For one hour any Stable Master you speak to will allow you to use his horses to travel to any of the destinations he has available, regardless of your Subscription Status, and for free. If Swift Travel is available for that route it will be available to you.
This item is comes from the Gift for a Starting Adventurer