Belt of the Long Road
Wondrous item, very rare (requires attunement)
This thick leather belt is worn and full of cracks. It is fastened by a heavy buckle of obsidian. While wearing this belt, you gain the following benefits:
Your speed increases by 10 feet.
Difficult terrain doesn’t cost you extra movement.
You have advantage on Constitution saving throws made as a result of a forced march.
You count as one size larger when determining your carrying capacity and the weight you can push, drag, or lift.
In addition, you can use an action to cast the teleport spell. Once used, this property of the belt can’t be used again until the next dawn.