Glory Mod/Aerogel

The Aerogel is a Pre-Hardmode that can be crafted using 20 Gel, 3 Feathers and 15

While equipped, it greatly boosts the jump speed of the player (+100%) and slightly reduces the fall speed (-10%).

Effects stack with the Frog Leg, meaning equipping both will result in quite high jump speed.

Trivia

 * is the world's lightest solid, it is also highly expensive, surpassing gold.