Yet it appeared to have slipped the Mean Girls actress' mind when she was getting ready yesterday.
The 26-year-old was seen shopping at a vintage store in Venice without any support for her rather ample 36D bust, causing them to sag a little as she showed off sideboob during a cigarette break.
|Sideboob alert: Lindsay Lohan does some vintage shopping in Venice - and seems to have forgotten her bra|
Arguably, the white halterneck wouldn't have had quite the same summer chill-out look with a chunky bra strap ruining the backless effect, but an underwire bikini top wouldn't have gone amiss.
Unfortunately for LiLo, the downside of being blessed with a generous bosom often means they have a little difficulty defying gravity and a tendency to go walkies south.
But unlike the plastic fantastic stars of Tinseltown, it is no doubt refreshing to see someone proud of their natural curves.
|Cigarette break: The shopping spree obviously proved strenuous, and LiLo needed a puff|
Lindsay teamed the look with white pumps, a pair of denim shorts and a chunky silver bracelet.
And it seems the arduous task of shopping proved a tad strenuous on the New Yorker, as Lohan soon needed a cigarette break halfway through scouring the rails of the Los Angeles store.
During an interview with Cosmopolitan, Lindsay previously confessed: 'I don't really like talking about it, but last I checked it was 36D.'
She also told Cosmo Girl in 2005: 'I developed late in school. When I was 16, I still had baby fat. I didn't get my chest until I was 17, so that made me insecure. I used to feel like I had to stuff my bra.'
However, last December, Lindsay was far from shy about her figure as she posed for Playboy.
|Hanging free: LiLo natters on her iPhone during a cigarette break|
At the time she revealed: 'Sex and sexuality are a part of nature, and I go along with nature. I think Marilyn Monroe said that, and I agree with her.
'Knowing your body and being in touch with your body is important because it gives you confidence, and in life, women need confidence.
'It’s a very male-dominated world, so knowing yourself and being comfortable with your body is an important thing for me as a woman.'
The redhead, shopping yesterday with brother Cody, has just wrapped filming on The Canyons, starring alongside porn star James Deen in the Bret Easton Ellis scripted film.
And following a career nosedive that threatened to send her spiralling into oblivion, LiLo is back on track with roles in Machete Kills, Scary Movie 5 and the recently completed Liz & Dick.
[Source : http://www.dailymail.co.uk]