Wide trousers without a zip, but with buttons. But with buttons instead of the zip. Greet made a round entrance to the side pockets instead of a straight one. The pattern is the Turi trousers from la maison victor 1/'20.
It is best to use a slightly heavier fabric for this pattern, such as jeans.  If you take a thinner fabric you get a 'baggy' trousers look ;-)