A Summer outfit is not complete without the perfect pair of sunglasses, and our latest shady crush hails from Westward Leaning [1]. After spotting these retro-meets-modern shades on trendsetters like Jessica Alba [2], Olivia Palermo, and Reese Witherspoon [3], just to name a few, it's clear they're the hottest ticket in Hollywood. And the best part? Every pair comes with a feel-good message. Each silhouette was inspired by a different social movement — like the Teach For America, John Glenn Center For Science Education, and National Parks Conservation Association — and with every sale, $10 is given back to the cause. Pretty cool, right? Cruise through to see if your favorite fashionista has sported a pair of these killer specs — then shop their exact pairs.
— Additional reporting by Chi Chau
align=right>Reese Witherspoon
Reese blossomed in a floral-print blouse, magenta Proenza Schouler satchel, two-tone d'Orsay pumps by 3.1 Phillip Lim, and the Louisiana Purchase Westward Leanings [4] ($180) in LA.
Olivia Palermo
These Wintermute shades [5] ($210) rounded out Palermo's Paris Fashion Week look.
Jessica Alba
The street-chic star [6] finished her LA look with a leopard A.L.C bag, Charlotte Olympia x Tom Binns flats, and these Color Revolution shades [7] ($180).
Katy Perry
Make a major statement in these mirrored Westward Leaning shades [8] ($180), almost identical to Perry's.
Alessandra Ambrosio
While vacationing in St. Barts, Alessandra Ambrosio showed off her fit figure in a rainbow bikini and this Sleeping Beauty [9] ($210) style from Westward Leaning.
Heidi Klum
Klum stuck with a black-and-white theme donning the popular Teddy Roosevelt [10] ($250) style of Westward Leaning sunglasses while catching a flight.
Olivia Palermo
Top your strolling style with Palermo's Children of California specs [11] ($180), in tortoise.
Selena Gomez
Selena suited up in a fringed Forever 21 poncho and these Love Thy Neighbor shades [12] ($250).
Jennifer Lawrence
Lawrence chose these Sleeping Beauty Westward Leanings [13] ($210) in black to top her striped maxi and boxy tee.
Selena Gomez
The brunette stunner was all smiles romping around Malibu, CA, in a cropped Wildfox tank, white denim shorts, and these exact Westward Leaning sunglasses [14] ($250).
Rosie Huntington-Whiteley
The model showcased her love for Westward Leaning with an all-black ensemble and this Mercury Seven [15] ($180) style in Beverly Hills, CA.
Kristen Bell
Bell paired her floral maxi and cropped denim topper with these Westward Leaning sunglasses [16] ($195) and a blush leather crossbody in North Hollywood.
Jessica Alba
Score Jessica's exact beaded specs [17] ($250) or up the ante with this marbled version [18] ($250) by the celeb-approved brand.
Olivia Palermo
At Milan Fashion Week, Palermo stepped out in leather pants, a brocade coat with a fur collar finish, and the black "Children of California" style.
Kate Bosworth
Kate Bosworth [19] paired her Westward Leaning specs [20] ($180) with a Mulberry t-shirt, denim shorts, and JewelMint baubles for a stroll around LA with her main man, Michael Polish.
Charlize Theron
Theron left an LA dance studio donning an aztec-print tee, red slip-ons, and these Wintermute Westward Leanings [21] ($180).
Reese Witherspoon
Reese arrived at LAX working a pink printed scarf, coordinating flats, and these Louisiana Purchase [22] ($180) specs.
Nicky Hilton
Nicky strolled NYC in an all-gray ensemble and black accessories — leather Proenza Schouler satchel, Isabel Marant sneakers, and cool-girl Westward Leanings [23] ($180).
Alessandra Ambrosio
Ambrosio accessorized her Coachella style with riding boots, a fringed crossbody bag, and these Louisiana Purchase [24] ($180) Westward Leaning sunglasses.
Hayden Panettiere
Panettiere accessorized her cool-weather look with a pair of red-hot mirrored shades similar to these Color Revolution specs [25] ($180).
Jessica Alba
Jessica topped her monochomatic look with a pair of Westward Leaning Love Thy Neighbor shades [26] ($250) in Paris.
Kate Hudson
A fur trapper and these Wintermute N°10.1 sunglasses [27] ($210) completed Hudson's Sundance style perfectly.
Emily Blunt
Emily was spotted sporting her Westward Leaning sunglasses [28] ($195) with a printed dress and leather jacket while out and about in Sydney, Australia.
Alessandra Ambrosio
Ambrosio styled printed denim with a leather topper and Westward Leanings in LA's Brentwood neighborhood.