Get a crash course in Hailey Bieber's signature style on the model's birthday.

It girl and fashion leader Hailey Bieber turns 27 today. In true <a href="https://www.lofficielusa.com/fashion/sagittarius-season-zodiac-style-inspiration" target="_blank" rel="noopener">Sagittarius</a> fashion, Bieber's effortless style is always impressive. Whether&nbsp;stepping out to greet the streets of Manhattan or gracing the red carpet, the model and her stylist&nbsp;<a href="https://www.instagram.com/stylememaeve/" target="_blank" rel="noopener">Maeve Riley</a> have been at the pinnacle of <a href="https://www.lofficielusa.com/fashion/hailey-bieber-birthday-street-style" target="_blank" rel="noopener">street style</a> and the <a href="https://www.lofficielusa.com/fashion/trend-shopping-sports-outfit-fitness-activewear-luxury-model-off-duty" target="_blank" rel="noopener">&ldquo;model-off-duty&rdquo;</a>&nbsp;aesthetic. The secret behind her always on-point wardrobe? Several key pieces that Bieber consistently sports, from oversize blazers to leather statement pieces.&nbsp;

All About the Blazer

Bieber's signature style&nbsp;wouldn&rsquo;t&nbsp;be complete without an impressive&nbsp;wardrobe of <a href="https://www.lofficielusa.com/fashion/hailey-bieber-sexy-oversized-blazer-fashion-trend-saint-laurent" target="_blank" rel="noopener">blazers</a>.&nbsp;From classically sleek silhouettes to oversized pops of colors, there&nbsp;isn't&nbsp;a blazer we&nbsp;haven&rsquo;t&nbsp;loved on her.&nbsp;

Photo: Getty Images.

Instagram @stylememaeve

Leather, Leather, Leather

Whether daytime or a sexy night out, the model has been known to sport <a href="https://www.lofficielusa.com/fashion/how-to-wear-leather-trend-fall-2021" target="_blank" rel="noopener">leather</a> for every occasion.&nbsp;

Instagram @haileybstyle

Pops of Green

<a href="https://www.lofficielusa.com/fashion/green-winter-bottega-green-color-of-the-year-2021" target="_blank" rel="noopener">Green</a> has quickly become the year's hottest hue and the model is well-versed in accessorizing with punchy pops. Many of the model's outfits are carefully created with unexpected green statements.

Instagram: @stylememaeve.

Floor-Length Coats

Bieber proves that floor length coats are appropriate for every occasion. Both leg bearing or bundled up for the winter, coats from <a href="https://www.lofficielusa.com/fashion/daniel-lee-is-leaving-bottega-veneta" target="_blank" rel="noopener">Bottega Veneta</a>, <a href="https://www.lofficielusa.com/fashion/yves-saint-laurent-most-iconic-wedding-dresses" target="_blank" rel="noopener">Saint Laurent</a>,&nbsp;and&nbsp;<a href="https://www.lofficielusa.com/fashion/gucci-dior-prada-hermes-fall-2021-pastoral-trend" target="_blank" rel="noopener">Prada</a> are seasonal staples of the model.&nbsp;

Instagram: @haileybstyle.

Sunnies for Every Occasion

Bieber's affinity for stylish sunglasses completes many of her looks including her strikingly simple <a href="https://www.lofficielusa.com/fashion/best-jewelry-met-gala-2021-red-carpet" target="_blank" rel="noopener">Met Gala</a> ensemble. In an interview with Vogue, Bieber even admits to sharing her favorite <a href="https://www.lofficielusa.com/fashion-week/every-look-saint-laurent-spring-summer-2022-pfw-anthony-vaccarello" target="_blank" rel="noopener">Saint Laurent</a> sunglasses with her <a href="https://www.lofficielusa.com/music/justin-bieber-cannabis-products-peaches-pre-rolled-joints-palms" target="_blank" rel="noopener">husband, Justin Bieber</a>.

Hailey Bieber's 5 Wardrobe Staples

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