Billie Eilish Nails the Visible-Underwear Trend in a Plunging Tank and Low-Rise Pants

Billie Eilish has partnered with Gucci to advocate for animals by starring in a campaign that launches the brand's Horsebit 1955 bag in a new material and a new asymmetric shape. Demetra, which is animal-free and combines quality, softness, and durability, is made from 75 percent plant-derived sources, according to an Oct. 30 press release. While Gucci has been working on crafting the fabric in Italy since 2021, it was perfect timing to collaborate with Eilish and feature her song "What Was I Made For?" in a Marcell Rév-directed cinematic film that accompanies the images, which were all lensed by Tyrell Hampton.

Eilish showcases both her genuine personality and authentic sense of style by wearing Gucci pieces exactly as she always has — baggy and oversize, with a '90s vibe that feels relaxed yet tough. In one shot, she sports a plunging white ribbed tank with boxers pulled out from the waistband of wide-leg khaki pants to achieve the underwear-as-outerwear trend in her own way. In another, she shouts into the abyss in a logo-splashed button-down shirt, a patterned bucket hat, high socks, and cargo shorts. The red highlights at the crown of her head and base of her bangs are put on display through her many poses, and Eilish piles on plenty of chunky silver rings and chain-link necklaces for all the shots. Her makeup is natural and effortless, with a pink glossy lip and crystal rhinestones glued to her teeth.

Gucci's commitment to doing better for the planet comes with a donation to Support + Feed, a charity that fights the climate crisis by striving toward an equitable plant-based food system. We hope to see other brands following in Gucci's footsteps, and there are a whole slew of labels making sustainability a priority already, including Hanifa, Collina Strada, and Hope For Flowers. Eilish, 21, is never one to stay quiet about her strong beliefs on the topic of being eco-friendly. She famously wore an Oscar de la Renta dress to the 2021 Met Gala dependent upon the fashion house's promise to stop using fur in production. Other luxury brands that have banned fur include Chanel and Prada, both of which Eilish has proudly worn on the red carpet.

PETA celebrated Eilish's work and the Gucci campaign on Instagram, commenting on one of her posts featuring the campaign, "Celebrating Gucci creating its first ever #vegan bag in style 👜🔥 You are fab and leaving such an impact by inspiring brands to help animals and our planet 🌎."

Ahead, see Eilish's Gucci campaign and find links to the new bags, which retail from $3,200 to $3,500.