How to create such a curved shape?

[Aquanoxius]

Hello! Need help to modeling this “tape”.

Notice that the top edge merges into the side and what was narrow at the right base becomes wide at the left.

[mihai.s]

Subdivision modeling (quads)
Extensions: FredoSpline, Vertex Tools, QuadFace Tools, SUbD, Fredo JPP.

[ecati]

Which video capture program do you use?

[mihai.s]

ScreenToGif or Licecap.

[ecati]

Thank you!