thanks everyone for your lovely comments 
i cannot wait for using it and the patina to develop! 
the strap is adjustable, but there aren't a lot of holes! i cannot add more holes, because the strap is made of canvas!
@orkneydaisy: i'm not sure if the strap from my rosy is robust enough when i take my laptop with me and the bag gets rather heavy, but i'll give it a try!
i cannot wait for using it and the patina to develop! the strap is adjustable, but there aren't a lot of holes! i cannot add more holes, because the strap is made of canvas!
@orkneydaisy: i'm not sure if the strap from my rosy is robust enough when i take my laptop with me and the bag gets rather heavy, but i'll give it a try!