Terrarian adventurers have a lot of neat accessories to help them explore their world, but one of the highly coveted ones is the Jet Boots. These boots bestow the wearer with the ability to launch into the sky with incredible swiftness. It's like having your very own personal rocket propulsion system strapped to your feet! Equipping the rocket boots permits players to arrive at previously untouchable elevations, encouraging exploration more manageable. With these boots, Terraria becomes a true vertical adventure!

GuideCrafting Frostspark Boots Official Terraria Wiki