The Inner Tube is an accessory that causes the player to float on the surface of liquids instead of sinking to the bottom. The effect can be temporarily negated by holding ▼ Down. It can be found in Water Chests, as well as Ocean Crates and Seaside Crates.
- As long as the player is underwater, this accessory will accelerate the player upward with no speed cap. This can be exploited by using a deep water column to reach incredibly high speeds.
- The Inner Tube is likely based off 'floaties' found at the waist, commonly used by children to stay afloat while learning to swim. Some are also worn on the arms along with a life vest.