#SipSeaChange Campaign | @hartiswim @coopersjersey

A unique collaboration that puts community, creativity, and conservation at its heart.

Art on your cup, change in your hands

We want you to take action - whether it’s recycling, reusing your cup, doing a beach clean-up, or sharing your local sustainability story. Get involved and make a difference!

Your post or story will be entered into our monthly prize draw, where two winners will receive a HartiSWIM suit worth £220. Plus, don't miss Coopers in-store giveaways.

United by shared values of sustainability, transparency and social impact, this collaboration promises to brew more than just exceptional coffee, it invites us to pause, sip, and consider the world we wish to shape.

Part fashion revolution, part love letter to the ocean, HartiSWIM is the audacious new name redefining what it means to do sustainable luxury with soul.

At HartiSWIM, based in The British Isles, the sea isn't scenery, it’s our neighbour, our muse, our responsibility. We craft swimwear from recycled plastic bottles, giving waste a second life before it sinks into the sea. Each piece is a quiet protest against fast fashion, a reminder to buy better, buy less.

Founder / Creative Director of HartiSWIM Dr Tessa Hartmann CBE with Cooper & Co CEO David Warr

Fashion must do more. So we do. We educate, not lecture, showing how daily choices shape the tides. Because that bottle in your hand doesn’t disappear; it detours into a dolphin’s future. We are sirens, not of ruin but of change. The sea has called. We’ve risen. Will you?

HARTI - THE ARTIST. THE LEGACY. Harti - aka Sascha Hartmann, was a contemporary artist and cultural provocateur whose bold acrylic works combined Pop Art with fearless social commentary. His paintings were never simply decorative; they were created to question, confront and make us think.Harti passed unexpectedly in June 2026, just weeks after the brand’s acclaimed Miami Swim Week The Shows runway. This series features some of his final works, hand-painted artworks inspired by the beauty and colour of the Caribbean Sea.Today, HartiSWIM continues his creative legacy through his art, his words and his deep commitment to ocean conservation.The artist may be gone. The art keeps talking.

 Jersey’s beaches are beautiful - and keeping them clean helps prevent plastic and litter from entering the ocean. Look out for local clean-up events or grab a bag and go solo.

Support local fisheries that use responsible methods. Check if your fish is line-caught or sustainably sourced. Ask fishmongers or restaurants where their seafood comes from and avoid species at risk of over fishing.

Cycling, walking, or using Jersey’s buses instead of driving helps reduce fossil fuel emissions, which warm the ocean and cause acidification. Small lifestyle shifts help slow climate change, which is deeply connected to ocean health.

 Use reef-friendly sunscreens and biodegradable soaps. Many chemicals in conventional products harm marine life when washed into the sea. Local zero-waste stores often stock better options.

Refuse plastic bags, bottles, straws, and packaging whenever possible. Jersey’s size makes it ideal for setting a “low-waste” example - every plastic fork or wrapper avoided is one less risk to ocean wildlife.

Jersey has several marine protected areas. Support efforts to expand and properly manage them by backing local campaigns or spreading awareness through social media andlocal networks.

Start early - talk to kids about tide pools, sea creatures, and how plastic harms turtles. Use hands-on activities and books from local libraries. We're working on our own tool kit so will share soon.

Support local officials and policies that promote clean energy, waste reduction, and habitat protection.

The #SipSeaChange campaign champions a vital message: ocean conservation begins with individual action. Through education, recycling, beach cleans, and community support, small efforts can lead to meaningful impact. Harti and Coopers & Co rightly remind us that living on this island brings a shared duty - to protect and preserve our marine environment for future generations.