Making sense of superwash, bamboo, and everything in between
Yesterday, I sat in the middle of the pasture, listening to the ewes graze and watching the lambs play king of the big rock.
In that moment, wool felt simple.
Grass grows. Sheep eat grass. Wool grows.
But like so many things, what makes wool amazing also makes it challenging.
Wool is springy and spongy. Grass, hay, seeds—not to mention dirt and, here, sand—work their way in and hold on tight.
The same outer scales that help wool felt into warm, weather-resistant clothing are also what cause it to shrink in a modern washing machine.
And every pound of wool is tied to a sheep that spent months growing it—and to the land that fed that sheep.
Why Modern Textiles Get Complicated
Once wool leaves the farm, though, things get more complicated.
Our modern textile system is built for speed and scale. Turnaround matters. Consistency matters. Minimizing risk matters.
And so the industry has developed ways to smooth out the parts of natural fibers that don’t quite fit that system. The ones that slow it down.
Which brings me to the tricky ones:
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- Superwash wool
- “Bamboo” and other cellulose-based fibers
They look natural.
They feel natural.
They come from real animals and real plants.
But what happens next makes all the difference.
Why Fibers Like Superwash Wool and Bamboo Exist
If you’ve ever found yourself reading a yarn label and wondering what it actually means—you’re not alone. I’ve had those moments too.
These fibers solve real problems.
Superwash wool makes wool easier to care for. It resists felting, holds up in the washing machine, and lowers the barrier for people who want the benefits of wool without the maintenance.
Cellulose-based fibers—like viscose (rayon), modal, or lyocell (often marketed as Tencel)—start with plant material and are transformed into soft, drapey textiles. They’re appealing for their feel, versatility, and wide availability.
There are good reasons people choose them. I have too.
Understanding the Tradeoffs of Superwash Wool and Bamboo
The nuance is in how these materials are made—and what happens next.
Superwash wool is chemically treated, reducing the outer scales on the wool fiber. Then the damaged fibers are coated with a thin layer of Hercosett (petroleum-based resin) to seal and smooth the fiber.
The result is wool that doesn’t catch and felt. It changes how the fiber behaves, both in use and at the end of its life.
Cellulose-based fibers begin as plants, but they go through significant chemical processing before they become the yarn or fabric we recognize. The result is something that feels natural—but is quite different from the original material.
As in so many areas of life, these products are neither all good, nor all bad. But they are worth understanding.
It is worth asking: What happens next?
What Happens to These Fibers at the End of Their Life
With superwash wool, the wool itself will eventually break down. The coating that makes it “superwash” does not.
With cellulose-based fibers, many can decompose—but how they’re processed, dyed, and finished all play a role in how effectively they do so over time. Some can be recycled or reprocessed, but only if the right systems are in place to do so.
In other words: the ending isn’t always as clear as the beginning.
How I Choose Sustainable and Practical Fibers
I care deeply about how textiles are sourced, how they’re processed, and what happens to them when their useful life ends.
The goal isn’t perfection. Trade-offs are real.
I look for choices I can understand—and stand behind.
On our farm, that means choosing fibers that are minimally processed, durable, and able to return to the soil whenever the option is available and I can afford to do so.
Do I prefer non-superwash wool? Absolutely. Do
I prefer superwash wool to acrylic yarns? You betcha. Less plastic waste still means less microplastic pollution over time.
Real life isn’t one-size-fits-all.
Sometimes ease matters. Sometimes cost matters. Sometimes you just need something that works.
How to Choose the Right Fiber for Your Project
When I’m choosing materials, I come back to a few questions:
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- What problem is this solving for me right now?
- What tradeoffs come with that solution?
- What matters most in this moment—ease, origin, or end-of-life?
There’s no single right answer.
Just a little more clarity.
There’s No Perfect Fiber—Only Thoughtful Choices
Like so many things, the benefits and tradeoffs of different fibers sit alongside our own values and priorities.
If I’m struggling to clothe my children, any clothing is better than none.
And at the same time, I think about long-term impact—on soil, on water, on the people and animals involved along the way. It can be a lot to hold.
Even here, on the farm, we don’t use everything perfectly. I’m constantly working toward better systems, better materials, less waste.
Progress over perfection.
There’s no perfect fiber. Even wool production is limited by the speed at which wool grows and the availability of land and forage resources.
We have choices. We can make them with a little more awareness, a little more intention.
We choose what we bring into our homes.
We choose what we make with our hands.
And we choose what we stay connected to — and what we will let go.