If you’ve ever tried on a bikini and thought
"why is this so tiny?!" You are not alone.

Tranquila was created after years of constant swimwear sizing disappointment.

We try to keep swimwear sizing straightforward — so you don’t have to size up twice or wonder if a medium is actually an extra small.

Our signature swimwear fabric is made with Amni Soul Eco® — the world’s first biodegradable nylon. Designed to keep up with sun, salt, and surf, it’s durable, breathable, and built to last. But what sets it apart? It breaks down faster once in landfill conditions, reducing long-term environmental impact.

Soft, stretchy, and ultra-flattering, this fabric moves with you for comfort you can feel good about.