Gisele Bündchen Stars in Beachy Fashion Campaign, Her First Since Welcoming Baby with Joaquim Valente

• Gisele Bündchen appears in her first fashion campaign since welcoming a son with boyfriend Joaquim Valente
• The model stars in a beachy video for Swedish fashion label Marc O'Polo
• Bündchen says "natural fabrics for me are a must"

Gisele Bündchen is starring in her first campaign post-baby.

The supermodel, 44, appears in a beachy promo video for Swedish fashion label Marc O'Polo's spring/summer 2025 collection. In the clip shared to Instagram, Bündchen wears a breezy linen ensemble as she poses oceanside.

"Nature is a huge part of my life every day," she says in a voiceover, which turns into a black-and-white video clip of the model. "When I take my dog out, I just go barefoot so I can just feel the earth underneath my feet. Anytime I'm in nature, I feel like I'm being healed."

Bündchen continues that "natural fabrics for me are a must, not only for my health but for the health of the planet."

"If you have linens, cottons, and things that are not synthetic I think they are a lot healthier for you because they allow your skin to breathe," she explains.

Of the brand, she adds, "Marc O'Polo's been working very hard to make things sustainable which means high quality and using fabrics that are natural and it makes me very proud to feel like I'm a part of a company that's thinking about fashion in that way."

In February, the model welcomed a baby boy with her boyfriend Joaquim Valente. The couple have been dating since June 2023. When news of the pregnancy broke last fall, a source close to the Bündchen — whose divorce from Tom Brady was finalized in October 2022 after 13 years of marriage — exclusively told PEOPLE that she was “excited to embrace this new chapter openly.”

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Bündchen and Valente, 37, enjoyed a day out in Miami on Sunday, March 30, hitting the waves together on water bikes. For the outing, the model wore a simple black activewear set, while her jiu-jitsu instructor boyfriend sported swim trunks and a T-shirt. The pair both wore hats and sunglasses, and both went barefoot as they trekked through the water together.

The duo was also spotted soaking up the Miami sun together on March 15 while on a boat trip with friends. Once again, the model opted for all black, looking chic in a one-piece swimsuit and matching sarong.

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The couple's newborn son is their first child together and Bündchen's third. She is also mom to daughter Vivian Lake, 12, and son Benjamin Rein, 15, whom she shares with Brady, 47.

Earlier this month, a source told PEOPLE about how Bündchen is settling into life as a mother of three, "Gisele's doing well. She seems very happy and content. She just focused on her family and rested for the first month after the baby arrived."

"She's slowly taking up yoga again now. She enjoys shorter outings with her older kids and Joaquim," they added. "Her older kids are helpful with the baby. Gisele tears up when she sees all the kids together - she still can't believe she has a newborn. She feels very blessed.”