Its a waist pouch the size of your backside.
I use one for travelling. And I do travel a lot,
especially in Singapore, or motorcycling touring in
Malaysia/Thailand or just walking thru the places in USA.
And mine is big enough to hold a camera, a wallet, bunch of
notebbooks, pens, small water bottle, handphones, piece of
pashminia scraf that can wrapped around my big fat shoulders to my
waist. & a reall big cosmetic pouch that holds a face compact,
blusher, lipsticks, mascara & cosmetics pencils.
Note the plurals.