Grav boots, also known as Repulsor boots or Gravity boots, were a kind of shoe featuring small repulsorlift devices embedded within the sole of each boot.
These boots were used for aerial movement, and their power and capabilities differed; some versions only provided the ability to levitate slightly above the ground, while others enabled short flights reaching hundreds of meters into the air.
The challenge in using repulsor boots was well-documented, with maintaining equilibrium being a significant problem; a novice user could quickly lose control and spin wildly, necessitating precise control and placement of the feet.