59% mulesing free merino wool
38 % Cordura® nylon
3% spandex
Built for people who expect more from a shirt.
The last merino shirt you'll buy
Most merino is made for the outdoors — comfortable, but fragile and inconsistent in everyday use.
GhostFiber™ is engineered differently. It keeps the natural advantages of merino, while adding the structure needed to handle repeated wear. Less odor, better temperature control, and a fabric that doesn't break down after a few washes.
Tested for daily wear, not occasional use.
Top Merino tees often cost much more. We kept our price lower to help more people try this tech, even though our blend is tougher and lasts longer than the "big brands."
We chose our manufacturer for one reason: they're specialists in high-tech merino knitting. They pay 20% above average wages and pass a strict SMETA audit every year. They are based in Shanghai, China.
No. GhostFiber is preshrunk and reinforced. It holds its exact size and fit, wash after wash.
Keep it simple. Machine wash cold, lay flat to dry. It dries very fast and stays sharp without the "special care" usual wool needs.
I moved from Belgium to Poland years ago and fell in love with the grit and potential. After launching two brands in the US, I noticed something: outside the outdoor niche, almost no one knew merino — or what it’s actually capable of.
Not because it doesn’t work. Because it was never adapted for everyday life.
RYSY was built here to change that.
We take proven performance materials and redesign them for daily wear — simple, functional, and built to last.
In the world of luxury knitwear, two names sit at the top: Merino and Cashmere. To the casual shopper, they both represent "high-end wool," and many assume that if you can afford cashmere, it is simply the "better" version of Merino.
Most people believe that staying warm in the cold is the sole job of their outer jacket. They invest in expensive down or high-fill synthetics, only to wonder why they still feel a "chill" when the wind picks up or when they stop moving.
We all know the marketing: Merino wool is the "miracle fiber." And in many ways, it is. But there is a dirty secret in the performance apparel industry that most brands won't admit: 100% merino wool is fundamentally fragile.
