About onesies

When the heat hits, staying comfortable and stylish can feel like a challenge. Enter the summer linen onesie — your all-in-one solution to beating the heat in effortless fashion. At Sofa Killer, we’ve taken your favorite cozy loungewear concept and reimagined it for sunshine season.

Why Linen?

Linen is a natural fiber known for its breathability and moisture-wicking properties. It’s light, durable, and gets softer with every wash. That means you’ll stay cool and fresh even on the hottest days — and look good doing it.

Top benefits of linen:

• Highly breathable

• Absorbs moisture and dries quickly

• Naturally antibacterial

• Eco-friendly and sustainable

One and Done: Style Meets Simplicity

The beauty of a onesie? It’s a complete outfit in a single step. Just zip (or button) it up, throw on some sandals or sneakers, and you’re out the door. Whether you're heading to a beach brunch, lounging on your patio, or strolling through a summer market, our linen onesies strike the perfect balance between laid-back and put-together.

Designed for Summer Adventures

Sofa Killer’s linen onesies are:

• Lightweight: Ideal for packing in your holiday suitcase

• Breathable: Keeps you cool even during heatwaves

• Versatile: Dress them up or down with minimal effort

• Unisex: Made to fit and flatter all bodies

Choose from classic neutrals to bold summer hues — there's a style for every vibe.

The Sofa Killer Difference

We’re all about comfort that doesn't compromise on style. Our linen onesies are thoughtfully designed in Europe, with quality and sustainability at the heart of everything we do. Whether you're chilling indoors or living it up under the sun, we’ve got your back (and your front).

Ready to Feel the Breeze?
Check out our latest men linen onesie collection and make this summer your most stylish — and comfiest — yet.