Hailey Bieber flashes her underwear in a sheer mini dress as she joins husband Justin for dinner

Hailey Bieber showed off her underwear in a sheer mini dress as she joined husband Justin for dinner in Santa Monica on Wednesday.

The 26-year-old model wowed in the daring all-black ensemble which she teamed with a pair of knee-high leather boots.

Justin, 28, went for a much more casual look as the couple left Giorgio Baldi’s Italian restaurant after celebrating his friend Lauren Perez’s birthday.

Hailey donned an oversized leather trench coat and carried a small baguette bag to complete her look.

She styled her hair in a sleek high bun and opted for a bright makeup palette, complete with subtle lip gloss.

Justin donned a hoodie with a pair of baggy flame-embellished basketball shorts and Nike sneakers.

It comes after Hailey headed out on a luxury ski trip with husband Justin and friends Kylie and Kendall Jenner over the weekend.

Among the images shared on Instagram, the model rocked a backless dress with a thong design while out partying on New Year’s Eve, as well as a photo with Justin on the slopes.

Hailey dressed to the nines as she partied with the Jenner sisters to see the start of the New Year.

Wearing the form-fitting dress, the star smiled as she posed with her back to the camera in a sultry photo.

In another, Hailey hugged Justin as he sat on her lap on the snowy mountain.

Hailey bundled up in a North Face coat, beanie, and ski pants for the slopes and looked like she was having the time of her life during her New Year’s trip.