The strap is also adjustable and detachable, so this bag can double as a mini packing cube for when you're on-the-go. It even has a removable belt so you can wear it as a sling or on your waist.

I get it—belt bags are a super convenient style to carry ... interior pockets and a strap that's both removable and adjustable. Function, meet fashion. A few weeks ago, I saw someone carrying ...