This BL bag is designed so that you do not have to worry about it falling off of your shoulder. It fits comfortably! 
 
Dimensions are 9 inches wide, 15 inches tall, 5.5 inches in depth. There are 2 exterior zippered pockets, 1 exterior drop in pocket, 1 interior drop in pocket and it has brass hardware. 
 
Genuine cowhide leather and signature cotton lining. Handmade.