Jetpack

"Now the color makes sense" -Geo

Jetpacks are obtained by crafting 2 Metal, 1 Reinforced Rope and 1 Hiking Backpack together. They have the same inventory space as a Hiking Backpack and still slows you a little, but also grant temporary flight by looking up. You can also look down and up repeatedly to cross gaps rather than using all of the fuel at once. It has 50 fuel, and can't be used during boss fights.