In the market for a lock to fit in this bag. Since I started biking last year, I have only gone on 1 to 3 hour rides so I dont have to leave the bike unlocked. This coming year, I will start going on longer rides that will require bathroom breaks, lunch stops, ect. Looking for something to secure my bike so it will still be there after these type of stops. I dont consider the areas I ride in to be high crime areas but things can get jacked in the burbs too.