It doesn't really slouch, yet. I think I saw a pic somewhere of a Hamilton that was getting softer but mine is brand new. The lady I bought it from said she never carried it out of the house and I believe her.
While I do LOVE the Bal slouch, the fact that the Hamilton leather is more sturdy is actually why I got this because I wanted a more durable black City.
It looks really good. And definitely more sturdy... I'm gonna check out this leather next time I go to bal. leather looks really thick n durable. I guess if u felt like slouch that particular day, you can always carry another bal!