What Makes Cashmere Perform
Cashmere has earned a reputation for being soft, luxurious, and a little impractical. Beautiful to own, but too precious for everyday life. We started Alpine Revival with a different question: what if cashmere could keep everything that makes it exceptional, warmth, softness, breathability, and lightness, while actually standing up to the way you live?
That question changed the yarn, the construction, and ultimately what a cashmere sweater could be.
Hold it up to the light
Take a cashmere sweater, any cashmere sweater, and hold it up to a window.
You can probably see the light coming right through it. That is normal. That is most of what is sold as cashmere, and it is the reason people treat cashmere the way they do. You wear it twice a year. You send it out to be dry cleaned. You keep it away from anything with a zipper, red wine, oil.
Hold one of ours up to the same window and you will not see the light through it.
That difference is not an accident, and it is not thickness for its own sake. We call it performance cashmere, and it is the whole reason this company exists.
Cashmere was never the problem
Here is the thing most people never get told about cashmere. The reason it is worth the money has almost nothing to do with softness.
A cashmere fiber is long and hollow, like a strand of hair (because it is a stand of hair - Kashmir goat hair). A wool fiber is shorter and it kinks, over and over down its length, and it traps air between those kinks. That is how wool keeps you warm. It holds heat in place.
Hollow behaves differently. A hollow fiber takes on your properties rather than trapping them, which means it moves with your temperature instead of fighting it. It is why you can wear cashmere into a warm lodge and not immediately want it off, and why down, which is very good at trapping warmth, is also very good at trapping the moisture that comes with it.
The goats produce that fiber because of where they live. Ours comes from Mongolian herders, where roughly 90 percent of the world's cashmere goats live their lives, enduring temperature swings most animals could not survive. The fiber is nature's answer to that climate.
The cashmere used for yarn comes from the incredibly soft undercoat of the goat, and there is not much of it. It can take the fiber from roughly four goats to make a single sweater, with that coat collected only once a year. That scarcity is part of what makes good cashmere expensive before anyone has designed, knit, or constructed a garment from it.
So cashmere already regulates better than merino and better than down. That part was never the problem.
The problem was everything else
The problem is that cashmere on its own is fragile. Because of that long, hollow fiber, it is difficult to spin into yarn that won’t fray when approached with friction. As a result, it stretches out and stays stretched. Those loose ends pill (a lot). It catches. And so an entire category of clothing that would actually be perfect for a life spent outside got filed away as something delicate you save for dinner.
I spent 21 years on ski patrol doing avalanche control. I won a world championship on skis and landed a backflip at age 55, which is either impressive or a bad idea depending on who you ask. I also spent a decade buying products for stores for other owners, which means I have opened a lot of packages. When we began developing samples for this collection, we ordered knit-downs in a range of fibers, including merino, which I’ve always loved. But when the samples arrived, they didn’t meet our standards; the hand feel was disappointing, and the merino blends felt noticeably less premium. When we opened the cashmere one, it was not even close. That was the moment. You can always make something less expensive later. You cannot start cheap and work your way up to this.
But I could not see myself making another beautiful sweater that you have to baby.
Not all cashmere is the same
One thing I learned quickly is that softness alone does not tell you whether cashmere is good. Fiber length matters. Fineness matters. How the fibers are sorted and processed matters. And the density of the finished knit matters.
In fact, some cashmere that feels incredibly soft the first time you touch it has been heavily processed and washed to create that feeling. Shorter fibers can feel beautiful in the store and still wear out faster once you actually live in the sweater. We tested different yarns before landing on ours because I cared much more about how it would feel and perform years from now than how impressive it felt for thirty seconds on a rack.
Two strands, every stitch
So we combined elastane alongside the cashmere.
Not simply blended into a yarn, and not a panel of stretch added somewhere. Picture the cashmere strand at full thickness and the elastane at about 1/12th of that, running beside it, and the whole piece knit with both together so every single stitch holds both fibers. The elastane works out to around 10 percent.
It is knit under slight tension and relaxes onto your body. What that gets you:
It stretches and comes back. The elastane holds the structure, so the piece moves with you and returns to its shape instead of growing into a new shape in places like the elbows.
It resists pilling far better than standard cashmere. The knit sits tighter. There is less loose fiber working its way to the surface.
It goes in the washing machine. Cold, delicate cycle, no dryer. That is the whole care instruction. You can hand wash or dry clean ours, but it is not necessary (if you know and trust your machine).
You cannot see through it. It is a densely knit, rugged cashmere sweater, which should be a contradiction and is not.
Nobody else is making it this way
There are companies making genuinely good cashmere sweaters. I looked at all of them for years, first as a buyer and then as someone trying to build this, and some of them do beautiful work.
But every one of them is making cashmere the way cashmere has always been made, and then asking you to be careful with it. I could not find a single company engineering the fiber itself to perform. I know it must be out there, but I didn’t come across any.
That gap is the entire business. It is why we can say this is the only cashmere built to perform as hard as you do and mean it literally rather than as a line.
Durability mattered to me more than almost anything else, and I do not mean surviving one season. Durability is a big reason why we can consider our products sustainable. They will last and you don’t need to keep buying new items. I mean you still have this in ten years, and it does not look dated, because the design is not chasing anything. The sweater I wear all the time is already about two and a half years old. It has been worn the way I intended these pieces to be worn—not carefully, not occasionally—and it still holds up incredibly well. That matters more to me than almost any laboratory-sounding performance claim. The point was always to make cashmere you could actually use.
Small runs, construction that holds, a piece that ages rather than expires. Cost per wear - it’s a real thing. And that’s different math on four hundred dollars than a sweater you will likely replace.
How to take care of it
Cashmere pills when loose fibers work their way to the surface and rub. A tighter knit gives them less room to do it, which is why ours resists pilling far better than standard cashmere.
It does not mean never. Any cashmere will pill eventually, usually where a bag strap, a sleeve rubs, or an arm sits. A cashmere comb takes it off in about a minute and the piece looks new again. We also use a sweater shaver but please use these gently.
Washing is the short version: cold water, delicate cycle, no dryer, lay it flat to dry (I put mine on a towel). That is the whole instruction. No dry cleaner, no filling the sink unless you want to.
The details you find later
The construction is only half of what you are paying for.
Our Hoodie: The hoodie comes up higher than you expect and turns into a cowl at your neck, and it is two layers there, not one. There is extra material at the elbows where wear actually happens. The tail sits lower in the back so it stays put when you sit down. There are stripe accents in colors you may not notice from across a room. Some colorways have a contrast color inside the hood and/or as the drawstrings for the hood. And by the way, the drawstrings actually work!
Our Women’s Flannel: On the back it says Ski Powder Laugh Louder. We had it machine embroidered first and it looked wrong to me, so it was stitched by hand instead. That is not efficient. It is the right call.
We make roughly 100 pieces per color of each style. Small runs mean the details stay possible and it also means when a color is gone, it is gone.
Made for the life around the mountain
Cashmere has spent its whole reputation being precious. Fine, delicate, special occasions, dry clean only.
I wanted the opposite. Something you put on for first chair or tram and are still wearing it with pride at dinner. Something that survives a truck bed and a flight and a fire pit.
Here is what a real day in it looks like. You work hard enough to sweat, and because the fiber is hollow it moves with your temperature instead of holding onto it, so you are not overheating on the climb and then freezing on the ride back up. It stretches where you reach and comes back. It layers under a shell without bunching at the shoulder. At the bottom you take the shell off and you are wearing a sweater, not a base layer you would rather nobody saw. And remarkably, it doesn’t hold smell.
Then you go straight to lunch in it. Made to hold up to real life adventuring, not just for special occasions.
That is performance cashmere. Not cashmere with a performance label on it. A genuinely different piece of clothing.
Talk soon, A.J.
The new run lands Fall 2026 Roughly 100 to 200 pieces per style, and the list gets it two days before anyone else.
Ready to see it for yourself? Shop Now!
