The WingSuit is one of the vehicle items craftable in GRAV. It will let you glide through the air by holding down the Jump button. When jumping normally you can keep holding it down to release your pair of wings and glide until you hit the ground.
To craft the WingSuit you will first have to obtain the Blueprint. This will start to drop from level ~5 creatures and above. After you obtain the WingSuit Blueprint you will need to make a Factory and upgrade the Factory to level 4.
WingSuit Blueprint cost: