In a pinch, lots of women have been known to store their iPhone in their bra. Us smaller-chested ladies, though? Well, that's never really been an option -- you can maybe store some money in there, but even that's risky.
These things are pretty great for a boost, but boy, are they unappetizing.
Seriously, where do they go? It's like they slip into an alternate dimension.
XS on top, M on the bottom? Yeah, sounds about right.