4 Royalty-Approved Ways to Wear Flat Sandals This Summer

We love Mother Earth and fashion. The two don’t have to be mutually exclusive, which is why for Earth Day, 100% of the products featured in editorial stories published today will be eco-friendly.
It's tempting to frantically find a fast-fashion version of whatever Meghan Markle or other royals are wearing—yes, we're guilty too—but emulating their style doesn't have to come at the expense of the environment. In honor of Earth Day, every single royal-inspired item I chose below boasts one or more sustainable elements (think recycled, renewable, and/or biodegradable materials, or reduced water usage and waste in the production cycle).
Another element of sustainability is working toward achieving a circular fashion system. The industry's current linear model is "take, make, dispose, [which results in] 73% of the world’s clothing eventually ending in landfills or being incinerated," per the Global Fashion Agenda, a Copenhagen-based nonprofit that aims to make sustainability fashionable and provide direction to industry leaders. Simple solutions to this massive problem include reselling or donating your clothes instead of disposing of them, and buying items made with recycled or repurposed materials.
Scroll down to shop outfits inspired by Meghan Markle, Queen Letizia, and Princess Charlene using brands committed to sustainability in their own unique ways.
On Meghan Markle: Reformation dress; Sarah Flint shoes; Karen Walker sunglasses
Stella McCartney is unquestionably the leader in sustainable designer clothing, and these sunglasses are no exception. "The new eyewear collection is made without the use of these fossil fuels, replacing harmful diethyl phthalate—derived from petroleum—with innovative bio-acetate," the brand explains on its website. "Made from responsibly harvested wood pulp, this is a natural, renewable, and biodegradable alternative that's better for our ecosystem and the environment."
On its website, Reformation notes that this dress saves 784 gallons of water, 13 pounds of carbon dioxide, and 1.2 pounds of waste compared to most clothing bought in the U.S. Learn more about Reformation's sustainable practices here.
On Queen Letizia: Adolfo Dominguez dress; Uterqüe sandals
Ancient Greek Sandals has banned the use of chemicals in the production of its handmade shoes. Fun fact: Emma Watson named the brand one of her 10 favorite sustainable labels.
On Princess Charlene of Monaco: Roberto Cavalli dress
"Wolf Circus uses either recycled sterling silver or recycled bronze that is coated in a high-grade 14k gold plating," the brand explains on its website. "We're adamant about ensuring our collection is both well-made and well-priced, and like to think of ourselves as an attainable luxury."
Emily Levine repurposes antique saris she finds in India to bring new life to the one-of-a-kind fabrics. Upcycling promotes a circular fashion system, which is crucial to making the industry more sustainable.
On Meghan Markle: J.Crew shirt, shoes, and hat
These vintage Levi's jeans were recycled by Copenhagen-based brand Designers Remix, which is one of the many brands participating in the Global Fashion Agenda's circular fashion commitment.
Next, the four dress trends every princess, queen, and duchess own.

Erin got her start as a Who What Wear intern in 2011—back when the site only published a single story per day. (We have since increased that number twentyfold.) She graduated magna cum laude from USC and lives in Los Angeles. In college, she also interned at Refinery29, where she was promoted to editorial assistant and then assistant editor. After nearly three years at R29, she came back to WWW in 2015, where she is now the Associate Director of Fashion News. From the Oscars to the Met Gala, she leads the site's entire red carpet coverage strategy. She specializes in celebrity and fashion news but also enjoys writing travel features and runway reports. She frequently contributes to WWW's social accounts and has a sizable following on her personal TikTok.
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