Is a hip pack or a crossbody sling better for anti-theft in cities?

Across travel-gear reviewers we read, the consensus is that a bag worn crossbody on the front of your chest is the most pickpocket-resistant configuration, regardless of whether the bag was designed as a fanny pack or a sling. Look for back-facing hidden pockets, lockable zipper pulls, and a strap that can't be cut easily as the bigger anti-theft features.