Asking for a friend: Do some white sneakers stay whiter longer?

Is it just me, or, do some shoes get dingier faster? A shoe expert explains how to keep your white sneakers white. Step 1: buy *this* style.

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Photo: <a href="http://www.stocksy.com" target="_blank" rel="noopener noreferrer">Stocksy</a> / Sergey Filimonov