Logitech AnyAngle for iPad Air 2  is a protective case for iPad Air 2 that has an integrated hidden hinge to firmly hold your iPad at any angle within a 50°. The case is made with durable and water-repellent materials to protect against bumps, scratches and spills.
It is slightly on the heavier side because it is meant to be a protective case and hence the case itself weighs 342g.
It comes in six colors (Blue/Red, Green/Teal, Pale Grey, Violet, Yellow, Black) and is retailing for S$79.
There is also Logitech AnyAngle for iPad mini/mini 2/mini 3  and it is also retailing for the same price, S$79.