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Materials

THE IQONE T-shirts are 93% fibres of natural origin, made from wood cellulose. Tencel™ and viscose with Outlast® PCM microcapsules, plus Lycra® to hold the shape. Below: what it's made of and where this T-shirt shows what it can do.

What the T-shirt is made of

  • Tencel™ (lyocell) — a fibre made from wood, smooth and soft, good at handling moisture next to the skin.
  • Outlast® viscose — a cellulose fibre with embedded PCM microcapsules. The capsules take up excess heat when it gets warm and release it when it gets cool. They're part of the fibre, so they don't wash out.
  • Lycra® — keeps the shape all day and after washing.

Made in Poland.

Where THE IQONE shows its advantage

Anywhere movement alternates with standing still and the temperature keeps changing. On the move, the capsules take up excess heat; at a stop, they give it back — instead of a wet T-shirt that chills your back, you have a layer that evens out those changes.

Where What the day looks like What the T-shirt does
Trail and outdoors climb, a stop at the viewpoint, descent; wind on the ridge, sun in the valley takes up heat on the climb, gives it back at the stop — less changing of layers
Work in the field car, warehouse, client's office, building site, car again — for 10–12 hours one T-shirt from morning to evening, no swapping for a fresh one halfway through the day
A day in town heated car, air-conditioned office, outdoors, shop responds to every change in temperature at your skin, before you start to sweat
Travel a long drive, the airport, the plane, a warmer climate at your destination several days of wear — customers tell us it doesn't pick up odour

More: how the capsules work · a T-shirt for changeable weather · working in the field · Marek Kamiński: the poles and Patagonia.

Care

The fewer chemicals and the lower the heat, the longer the T-shirt keeps its properties. Wash at 40 °C (maximum 40 °C), spin at up to 1000 rpm, with a mild detergent. No fabric softener — it makes the fibres stick together. No tumble dryer and no radiator: dry naturally, on a hanger, a drying rack or flat. Iron at 100 °C max.

Full care guide →

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