Well-fitting jeans are a staple in any woman’s closet — especially moms. And as January Jones, Jennifer Garner and Malin Akerman prove, great denim can really take your style up a notch.

So what’s the secret to their polished everyday looks? Hint: It’s in their genes — er, jeans — from Citizens of Humanity.

For an Oct. 15 lunch date with son Xander, Jones was the epitome of Cali cool in her slouchy Dylan Boyfriend Jeans ($228), white embroidered top and low wedge sandals.

And on Feb. 8, Garner paired a chunky marled sweater and Isabel Marant Basley Boots with her dark wash Avedon Skinny Leg Jeans ($198) while out shopping in Santa Monica.

January Jones Jennifer Garner Malin Akerman Citizens for Humanity Jeans

Splash News Online; Beverly News; FameFlynet

Luckily, the brand makes styles for mamas-to-be too. On Feb. 6, we spotted Akerman rocking the Avedon Slim Leg Maternity Jeans ($226) while grabbing a drink to go in Beverly Hills.

Not only does the company’s denim come in plenty of cool silhouettes and colors, but they flatter a variety of figures, giving them a custom feel. Really, could a girl ask for anything more?

– Anya Leon