Frostfire Boots

Frostfire Boots are an equipable item that provides immunity to fire blocks (i.e. hellstone, meteorite, etc.), immunity to lava for ten seconds, the ability to walk on water and lava, mobility on ice, super-fast speed, and flight.

It is only obtainable by combining Frostspark Boots and Lava Waders at a Tinkerer's Workshop.