This is the Taupe bean bag style pouf from the Sail collection, a casual, floor-level seat with a loose filling that adapts to the shape of the body, resulting in a very comfortable piece. It is built with only two pieces of fabric, cut in a triangular shape, a peculiarity of its design from which the whole collection takes its name: Sail is named after its similarity to nautical sail.

https://shop.gan-rugs.com/eu_en/bean-bag-collection-sail-taupe 

https://www.architonic.com/en/product/gan-sail-pouf-square-taupe-4/1374931