The second best part?

They can instantly transform an otherwise expected outfit into something totally left field.

Karlie Kloss styled her cream pants with streamlined, navy Supergas to strike just the right balance.

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2015 Gilbert Carrasquillo

You worked hard on those legs, why not show them off?

Gigi Hadid kept her look playful while focusing the attention on all the right places.

This one’s all about proportions.

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2013 Getty Images

Matching sneakers would be overkill with Leigh Lezark’s coordinated set.

Instead, she focused on her gold chain accent and incorporated her sneakers into the overall look.

Suiting can be streamlined and sexy, but it can also be sporty.

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Melodie Jeng

Monochrome sneakers took the effect in the entirely opposite direction.

On a similar note, Rihanna could have easily gone traditional with her quilted dress.

But she threw a curveball by swapping heels for running shoes (not to mention a fanny pack).

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2015 Taylor Hill

The result: tomboy-chic.

Jourdan Dunn’s look is everything we love about model off duty street style.

It’s cool, it’s edgy and it’s absolutely practical to get around the city in.

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2014 Dominique Charriau

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2015 Jim Spellman

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2014 Bertrand Rindoff Petroff

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2015 Melodie Jeng