New Mom Katharine McPhee Models a Swimsuit Designed by Step-Daughter Sara Foster!

Katharine McPhee is showing off her post-baby body in another swimsuit!

After showing off her curves in a bikini earlier this week, the 37-year-old entertainer took to her Instagram Stories to model a one-piece swimsuit designed by her step-daughter Sara Foster.

“Best one piece I’ve ever tried,” Kat captioned the photo. “Usually it’s cut too low and the torso isn’t long enough. Straps are adjustable. So comfortable! You nail it @SaraFoster.”

Kat also showed off the matching Summersalt x Sara Foster swimsuits that were made for her husband David Foster and their newborn son Rennie.

You can shop the full collection right now on the Summersalt website!

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