does anyone know how to reupholster this kind of chair?

I love the frame (and it’s really nice!) but I need a different fabric to match the decor for my loft. 

I’ve searched YouTube and can’t really find what I’m looking for.
Part of the problem is that I’m so clueless – I don’t even know what kind of chair this is, so I can’t really search for how to reupholster it.  All I’m finding are tutorials for the basic chair cushions that pop right out.

Anybody have any suggestions?????