Our Story

Wearable Art. Ocean-Sized Attitude.

HartiSWIM was born from a simple idea: why should art stay on walls?

Founded by Scottish fashion entrepreneur Tessa Hartmann CBE and artist Sascha "Harti" Hartmann, the brand transforms original hand-painted artwork into luxury swimwear and resortwear designed to make a statement. Inspired by Harti's internationally exhibited pop art and crafted using premium sustainable fabrics made in Italy, every piece combines creativity, craftsmanship and conscious design.

At its heart, HartiSWIM is a family-run business, led by Tessa alongside her daughters, singer-songwriter and brand ambassador Tallia Storm, and business strategist Valentina Hartmann. Together, they bring creativity, energy and entrepreneurial spirit to every aspect of the brand.

Since launching, HartiSWIM has evolved into far more than a swimwear label. Following two acclaimed appearances at Miami Swim Week The Shows, including the show-stopping Barbados After Dark collection in 2026, the brand has become known for blending fashion, music, art and ocean advocacy into immersive experiences that captivate audiences worldwide.

Today, the Harti world encompasses luxury swimwear, resortwear, bespoke Harti Atelier creations, Scottish cashmere, original music through H Collective and a commitment to protecting the oceans that inspire everything we do.

Because we believe fashion should do more than look beautiful.

It should tell a story.

Made by rebels. Worn by sirens. Driven by activists.