I've wanted something versatile, and which is alright if it gets dirty.  I'm often walking my two dogs, and no free hands.  This little purse is tough nylon fabric, and can handle anything.  It's a perfect waist-bag size, and I use it like that when I'm walking dogs.  The attachable shoulder strap is also enormously useful, and the waist belt goes into its secret chamber.  And then, you can have NO straps whenever you like, so it works as a wonderfully roomy wallet.  I've gone through a lot of waist packs and wallets, always looking for a perfect solution.  This time I found it.