It is an icon of a shuttle that looks like a bus. It has two round tires on the bottom and three square windows near the top. The shuttle is facing right.
This Shuttle icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,000 icons, all in the same style and quality.