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ONYX Shirt azur

CHF 449
incl. shipping cost

The ONYX Shirt redefines effortless elegance with its boxy, oversized silhouette, striking collar, and gleaming golden buttons. Crafted from a lightweight, breathable, and non-iron fabric, it seamlessly merges contemporary sophistication with everyday wearability.

Signature Material:

X10

Select Size
Size Guide

Back length 86cm for size XS. Choose your usual size.

The model is 176cm tall and wears size XS.

Expected delivery date: Not in stock

Description

  • Spaciously designed for an oversized fit
  • Exceptionally soft fabric
  • Smart cuffs with integrated elastics (see picture)
  • Opaque (non-see-through)
  • Non-iron fabric
  • Made in Portugal

Material & Care

Functional material that is breathable, very quick-dry and offers a soft stretch

COMPOSITION
100% high-quality Polyester

CARE INSTRUCTIONS

  • 30°C gentle cycle (we recommend 600 cycles)
  • Wash inside out in a mesh laundry bag
  • Hang wet to achieve the best non-iron effect
  • Do not tumble dry
  • Do not use fabric softener                                            
  • Do not iron (you may steam it if you like)

Shipping & Return

STANDARD SHIPPING

Standard Switzerland & EU: Free

Express EU: EUR 15

Other countries: EUR 29

DELIVERY

Switzerland: 1-3 working days

EU Standard: 3-5 working days

EU Express: 1-2 working days

International: Depending on region, no longer than 7 days

RETURNS

Within 14 days after receiving the parcel

 > View our Exchange & Return Policy

Complete the look

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X10

The feel

We could write poetry about our X10 fabric—feather-light, incredibly soft (with a touch unlike anything you've ever felt), and designed to breathe with you. It dries in a flash, never needs ironing, and moves fluidly with your body thanks to its smart mechanical stretch. Fully opaque for confident wear, yet so airy and comfortable, you might forget you're wearing anything at all. We call it X10 because you’ll reach for it ten times more often than you ever imagined—perfect for the office, the beach, dinner, nights out, aperitivo, events, travel, weekend escapes, casual brunches, or simply lounging at home.

Core Features

  • Breathable fabric lets air and moisture flow in and out, like tiny invisible windows, so you don’t get too hot or sweaty and can stay comfy all day.

  • Quick-dry fabric is made with special fibers that pull moisture away from your skin and spread it out across the surface, so it can evaporate faster—kind of like how a splash of water dries quicker when it’s spread thin in the sun.

  • Lightweight fabric is made with fine, airy fibers that feel barely there on your skin—kind of like wearing a cloud—so you can move freely and stay cool without feeling weighed down.

  • Non-iron fabric is made to stay smooth without needing to be ironed—like it magically skips the wrinkles—so you can get dressed quickly and save time for the fun stuff.

  • Mechanical stretch fabric is cleverly woven to give it natural stretch, so it moves with your body—like a gentle bounce—keeping you comfortable all day long.

  • SPF fabric helps protect your skin from the sun—like a built-in shade—so you can enjoy the sunshine while staying safe and covered.

The Care Guide

Please follow the garment’s care label first. (Applies to all fabrics.)
Wash garments inside out on a gentle 30°C cycle with a maximum spin speed of 600 rpm. Hang them to dry while still damp—they’ll dry quickly. Pre-treat cuffs or stains with gall soap, and add a spoonful of baking powder from the first wash to keep whites bright and crisp. Always wash with similar colours only—whites with whites! For best results, we recommend using INA KESS laundry detergent.

And one golden rule: always steam garments at a low temperature.

Composition

100% Polyester

The Look

Model in a white INA KESS shirt and black wide INA KESS pants standing on a wooden path with a natural background.

Size & Fit

Oversized cut.

INA KESS Swiss Atelier

Swiss Quality and Precision – Made in Italy and Portugal

Thoughtfully designed in Switzerland with meticulous attention to detail, each piece embodies our dedication to exceptional craftsmanship and enduring quality.

ELLA Stretch Pants ombre, MEA Top black

Effortless Wear & Care – Tailored to Move Forward

Our innovative, second-skin fabrics are breathable, wrinkle-free, fast-drying, and easy to care for — offering all-day comfort, fluid movement, and effortless elegance.

Person using a tool on a black object on a grid cutting mat. INA KESS atelier in Switzerland.

Feminine Fits – Designed for Driven Women

For those who value performance and precision: Every piece sculpts and supports the body with smart, flattering cuts that balance functionality and style.

INA KESS Swiss Atelier

Swiss Quality and Precision – Made in Italy and Portugal

Thoughtfully designed in Switzerland with meticulous attention to detail, each piece embodies our dedication to exceptional craftsmanship and enduring quality.

ELLA Stretch Pants ombre, MEA Top black

Effortless Wear & Care – Tailored to Move Forward

Our innovative, second-skin fabrics are breathable, wrinkle-free, fast-drying, and easy to care for — offering all-day comfort, fluid movement, and effortless elegance.

Person using a tool on a black object on a grid cutting mat. INA KESS atelier in Switzerland.

Feminine Fits – Designed for Driven Women

For those who value performance and precision: Every piece sculpts and supports the body with smart, flattering cuts that balance functionality and style.

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