Dysk Google and other 85,000 icons from Icons8 icon pack follow the visual guidelines of the operating systems: Windows, iOS, Android KitKat, and Material. PNG format is free up to 100x100 px. Icons are availble for download in PNG and vector (SVG, PDF, EPS, and more).
The Google drive icon is ribbon shape that is wrapped together to form a triangle shape. Each of the three sides are rhombus and they are connected together to form a triangle shape. The center of the triangle is empty.