Terrarites have a lot of neat accessories to help them explore their world, but one of the most sought-after ones is the Jet Boots. These boots provide the wearer with the ability to go airborne into the sky with great speed. It's like having your very own personal rocket propulsion system strapped to your feet! Wearing the rocket boots enables players to arrive at previously unreachable altitudes, encouraging exploration easier. With these boots, Terraria becomes a true vertical adventure!

Rockets Terraria Wiki