I purchased these chairs in green and blue for my two student daughters to use at their desks at home.
Both chairs became filthy within months with what I would consider reasonable use.
The fabric on the part of the chair you sit on looks very dirty quickly due to the light colours and the tendency of the mesh to 'catch and hold' dirt. The mesh on the back rest causes dust and dirt to accumulate in large amounts behind it on the inner plastic frame and it is almost impossible to clean due to the curved shape of the back rest preventing you from getting a cleaning cloth or a vacuum nozzle in behind it.
These are the most revolting pieces of furniture as a result and I regret buying them!
Very bad design and I would not recommend them.

Easy to set up, light to move around and comfortable to use