Hilary Duff looked cool and casual in her marled grey sweater, black maxi skirt and 'Eleftheria' sandals by Ancient Greek Sandals ($250, shopbop.com) as she took her son Luca out for the day.

I'm loving her mom-on-the-go outfit that doesn't sacrifice style for comfort! So often I fall into the jeans-and-t-shirt rut, but I'm definitely going to seek out a jersey maxi skirt like Hilary's for spring and summer.

I'm also seriously in love with her Ancient Greek sandals - they're so simple yet so chic! I found a good lookalike under $100 by Steve Madden in genuine leather but if you want to spring for the real deal, by all means please do!

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