The material (leather?) Lacks finesse - stiff and brittle

The lack of finesse leather touched grainy effect and cardboard, which makes the focused way;
Jeans rivet type buttons are fragile; broken after a few weeks of use and leather ??? tore revealing tear lips stringy which gives me doubts about authenticity of leather ,,,,, ????
The ergonomics of the 3 well studied pockets and looks strong to me at first;