Chrissy Teigen Rocks a Tie Bikini "Boulder Holder" on Her Family Vacation

Chrissy Teigen is enjoying her pregnancy in style. In a Dec. 21 Instagram post, she posed in a cute black bikini from Monday Swimwear, showing off her baby bump in the mirror. "@mondayswimwear coming through with a comfortable and cute boulder holder," Teigen wrote, wearing tie bikini bottoms and a bustier-style top. Teigen originally debuted the suit in a post made just a few hours prior, giving her followers a glimpse into her beachside family vacation and poking fun at her growing belly, writing, "Storks illustrated? I don't know."

As a brand, Monday Swimwear says it's all about creating "minimalistic" designs with an emphasis on body positivity. According to its website, the brand seeks to achieve this by "ensuring their designs are based off timeless pieces they know will compliment and flatter the female form, as opposed to recreating size-specific, temporary trends." Expect to find lots of simplistic but timeless pieces, like Teigen's Cala Roja top, which includes underwire cups and wide shoulder straps for plenty of support, and her Palma bottoms, which feature classic gold hardware.

Having appeared in Sports Illustrated's Swimsuit Issue multiple times, Teigen is practically an expert at sourcing high-quality swimsuits that will make you feel and look your most beautiful. Ahead, see how she rocked her chic "boulder holder" on vacation, and shop the exact same bikini for yourself.