Tessa Hartmann Goes from Real Housewife UK to Eco-Glambassador with HartiSWIM and a Chic Coffee Collab
- The Big Magazine Staff
- Jul 30
- 2 min read
By The Big Magazine Staff
She made headlines on The Real Housewives of Jersey with her razor-sharp style and no-nonsense flair but these days Dr. Tessa Hartmann has traded dinner party drama for sustainable design.
Now at the helm of HartiSWIM, her eco-luxe swimwear brand turning recycled ocean plastics into runway-ready art, Dr. Tessa Hartmann is proving that fashion can be both fierce and planet-friendly. And with her latest campaign, Sip Sea Change a fun coffee collab that stirs style with sustainability—she’s not just spilling the tea. She’s serving it strong, with pop art cups and a message that packs the moral punch of a double espresso.
Their most recent collaboration, Sip Sea Change, created with Cooper & Co, turns morning routines into fashion forward eco-minded cups of caffeinated joy. The campaign delivers climate consciousness in collectible, pop art-covered coffee cups designed in HartSWIM's signature print styles.
Cooper & Co. coffee has it's own iconic status known to have operated from addresses across London and Brighton selling tea directly to consumers. Many of the coffees they roast are from places the owners have visited like Peru, Bolivia, Araku Valley, Northern Sumatra, and Central America, to name a few. Just like HartiSWIM they wanna help save the world, one cup at a time.
At first glance, HartiSWIM dazzles with bold, disco-glam silhouettes and shimmering fabrics that belong on both the runway and the Riviera. But look deeper, and you’ll see the brand is stitched with purpose. The suits are made from 13.1 recycled ocean plastic bottles—sculpted into painterly one-shoulders, hand-draped kaftans, and sequined gowns ready for twilight soirees. Each piece is designed to last, luxuriously lined and made for women who don’t just swim—they stride, unflinching, and turn heads while making a point.
The prints? They come courtesy of Hartmann’s husband, known as @artbyharti, whose original acrylic artworks are transformed into wearable pop art. The result is a capsule collection that’s not just fashion, it’s a gallery you can dive into.
But Harti isn’t chasing trends, under Tessa's creative direction, the brand operates as a carefully curated capsule. “True sustainability isn’t seasonal,” she has said. “It’s considered.” That ethos runs deep—from production in Portugal to the use of 100% pure silk scarves and hand-stitched British satin. Mass production isn't part of the business model.
Hartmann is a powerhouse with decades of branding experience. She’s the founder of both Harti Swim and Hartmann House, and was appointed Honorary President of the British School of Fashion in 2022.
With over 25 years in luxury marketing—and plenty of media savvy from her time in front of the camera as a Real Housewife (UK) Hartmann has redefined what it means to be a "housewife." She’s not just dressing women, she’s also keeping them fashionably caffeinated.
By the looks of it, Dr. Tessa Hartmann is just getting started and we are here for it honey!
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