I have the Palermo PM and personally haven't tried to wear it across the body. I believe it can be done but I just haven't ever wanted to wear it that way. I don't know the exact measurements of the strap but I've seen pictures on the clubhouse thread that it can be worn this way. I find the strap a little short for my liking to try this. I do, however, like wearing it on the shoulder with the longer strap.