Merino Wool vs Cashmere: Which Is Warmer? Softer? (I Own Both)

I’ve been a full-time carry-on traveler since 2021, and my first cashmere sweater has been with me for 4 or 5 years.

Merino wool is newer for me, but it’s already part of my cold weather routine. It came with me to my recent fall and winter trips to Colorado and Italy!

When I looked up merino wool vs cashmere, most results came from brands that sell one or the other 🤨

But I own and have worn both, and I believe they have their own unique pros and cons. In the end, I want you to buy what you’ll actually wear.

Quick heads up on what I’m comparing…

My merino includes thin layers and tights, and my cashmere spans from sweaters to dresses, so I’ll tell you when I’m speaking from my closet and when I’m leaning on the experience of others.

Note: my husband also travels with merino wool sweaters and base layers, and I’ve definitely compared the softness of his merino with my cashmere pieces. For science 🙋🏻‍♀️

Here’s what you’ll learn today:

✅ Which one is actually warmer (and why I don’t trust the “8 times warmer” claim)

✅ Which one feels softer against your skin, and which one is more likely to itch

✅ Which one I’d pick for travel, for everyday wear, and for the coldest days

Merino Wool vs Cashmere: What I’ve Learned From Wearing Both

Merino vs cashmere pin showing a blush pink cashmere crewneck sweater and a black merino wool V-neck top on wooden hangers, labeled cozy sweaters, skirts and dresses versus base layers and active days

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Estimated reading time: 12 minutes

In the merino wool vs cashmere debate, cashmere is warmer for its weight and softer against the skin, while merino breathes better, handles sweat, and holds up to more wear. Pick cashmere for cozy sweaters and dressier pieces, and merino for base layers and active days. On my coldest days, I wear both: a thin merino layer under a cashmere sweater.

Merino wool vs cashmere: jump to your question 👇🏼

🔥 Which one is warmer

☁️ Which one is softer (and less itchy)

💧 Which one handles sweat

🧺 Which one is more delicate

👃 Which one holds odor

🧳 Which one is better for travel

🤔 Which one is right for you

1️⃣ Warmth: Is Cashmere Warmer Than Merino Wool?

Aimara wearing a black cashmere mini dress with a camel open front sweater jacket, a dressier way to wear cashmere instead of merino

Aimara wearing a ribbed camel cashmere midi skirt with a fitted white turtleneck, showing cashmere pieces beyond sweaters

Yes, cashmere is warmer for its weight. Its fibers are very fine with a natural crimp, and that crimp traps tiny pockets of air that hold your body heat.

Merino also keeps you plenty warm, but its strength is regulating your temperature. That’s the trade off in merino wool vs cashmere – you stay warm without overheating once you start moving.

Here’s my own experience: on the coldest days, I reach for my Quince cashmere crewneck with my Unbound Merino V-neck underneath as a base layer. I tend to run cold, so this combo does a lot of work for me ❄️

I don’t own a merino sweater, so I can’t compare them sweater to sweater from my own closet. I’ve always loved the look and feel of cashmere as my outer layer, so that’s what I go with.

My husband does own a Unbound Merino Heritage Knit Sweater. It’s a slightly dense knit, but it keeps him warm and he continues wearing it. He also swears by his merino wool base layer, especially because it doesn’t absorb sweat like cotton.

💡 Pro tip: if you run cold like me, layer them. Merino goes against your skin to handle sweat, and cashmere goes on top for warmth and style 🙋🏻‍♀️

2️⃣ Softness and Itch: Is Cashmere Softer Than Merino Wool?

Quick note first: they’re not the same fiber. Merino comes from Merino sheep, and cashmere comes from the soft undercoat of cashmere goats.

So is cashmere softer than merino wool? Usually, yes.

Cashmere fibers run about 15 to 19 microns, and superfine merino is 17.5 to 19.5. Anything over about 30 microns is what pokes your skin and itches.

In my experience, you only feel a slight difference in sweaters. My 17.5 micron Unbound Merino V-neck and Unbound Merino tights feel as soft as my cashmere, because they’re thin.

My hubby’s heritage knit sweater is a denser 19.5 micron knit. He notices an ever-so subtle scratch pulling it on, but not once he’s out and about. (When I touch it next to my cashmere sweaters, I can barely feel a difference.)

His Unbound Merino base layer is less dense than the sweater, and literally feels as soft as cotton.

💡 Pro tip: not all merino wool is created equal. Lower-quality wool with thicker fibers will feel itchier than superfine merino sold by many leading brands.

🎯 If wool bothers your skin, lanolin (the natural oil in sheep’s wool) may be the problem, not the fiber. Cashmere has none. Here’s what to wear if merino itches.

3️⃣ Breathability: Which One Handles Sweat Better?

When it comes to sweat, merino vs cashmere isn’t close. Merino can absorb up to about 30% of its weight in moisture before it feels damp, and it moves that sweat away from your skin.

Cashmere breathes too, but it doesn’t manage moisture nearly as well. That’s why you’ll find merino in hiking and ski gear and not cashmere.

So for anything active (hikes, long walking days, skiing), merino is the one. Cashmere is decidedly not activewear.

💡 In my opinion, this is where merino earns its spot as a base layer. It sits right against your skin and keeps you dry under a warm sweater.

🧥 Before you buy either merino or cashmere…

Have you ever bought a sweater you love, only to realize it doesn’t go with anything you own?

Whether you’re leaning towards cashmere or merino, the fiber matters less than whether the piece works with the clothes you already have.

That’s exactly what my closet quiz checks. Answer a few quick questions and I’ll send your closet score straight to your inbox, plus tips on how to design it so that dressing cute is easy and fun.

Take the closet quiz here ⬇️

4️⃣ Care and Durability: Which One Is More Delicate?

Cashmere is the more delicate of the two. Its fibers are finer and shorter, so it pills more easily, especially in high friction spots like underarms and sleeves.

Merino is stronger and more elastic, and it resists pilling better. Most merino can go in the washing machine on cold, but check the care label first.

That said, delicate doesn’t mean it won’t last. I bought my Quince cashmere crewneck 4 or 5 years ago for about $50, and it’s still in my rotation.

I own the Quince cashmere comb, but I’ve never actually used it.

I repeat my cashmere a lot as a carry-on traveler, and I still don’t notice pilling.

I wash my cashmere on a cold delicate cycle and air dry it. We air dry our merino too, and cashmere never goes in the dryer.

5️⃣ Odor and Rewearing: What We Actually Noticed

Odor resistance is the big selling point on most merino brand sites. So I was curious to see it for myself in the cashmere vs merino matchup.

Honestly? We haven’t noticed a major upgrade.

My husband and I have worn our merino on travel days and on trips to Northern Italy and Colorado. It airs out well, but so does cashmere.

Good cashmere can be worn 4 or 5 times before washing, and it doesn’t hold odor the way cotton does. For everyday rewearing, both do the job in my experience.

To be fair, we’ve only had our merino for a couple of months. If you’re hiking for days with no washing machine, that’s where merino’s odor resistance is said to matter most.

6️⃣ Which One Is Better for Travel?

When it comes to merino wool vs cashmere for travel, both pack surprisingly small and light. (And yes, cashmere compresses incredibly well, despite what you might have heard!)

If you want a winner, it depends on your travel style.

Merino is my pick for an active itinerary. It’s tougher, it handles sweaty walking days, and a thin layer takes up almost no space.

A merino base layer keeps you warm on winter trips, and brands make thin merino tees for warmer weather and even workouts (though I haven’t tested merino in real heat yet).

Cashmere is the cozier, dressier pick for a leisure trip, and you’ll find far more styles made in cashmere than in merino.

My cashmere duster cardigan is my favorite travel day layer. It covers my butt and keeps me warm in freezing airports and planes.

My Quince Mongolian cashmere tee comes on most trips too, except when it’s really hot ☀️

Merino Wool vs Cashmere: Which One Is Right for You?

As you can see, there’s no single winner here.

If you’re asking which is better, merino wool or cashmere, start with how and where you’ll wear it.

Choose cashmere if:

You want the softest feel against bare skin
You want stylish, cozy warmth for dinners out, errands, and cold evenings.
You want options beyond sweaters, like cardigans, tees, skirts, and dresses (In addition to cashmere tops, I own the Quince cashmere midi skirt and the Quince cashmere mini dress)
Your skin reacts to wool and you suspect lanolin

If you’re just getting started with cashmere, I recommend the Quince cashmere crewneck. The price is great, and I can totally vouch for it (I’ve had it in several colors for years 🙋🏻‍♀️)

For my piece by piece take, read my honest Quince cashmere review after years of wearing it.

Choose merino if:

You want a thin, sleek base layer that won’t add bulk under your clothes
You’re walking, hiking, or skiing and value breathability
You want something tough and low maintenance
You’re packing light and want layers that take up almost no space

For women, start with the Unbound Merino V-neck (mine’s black) or the Unbound Merino tights, or browse Unbound Merino women’s pieces made for layering.

If you want a merino sweater, Quince has Quince merino sweaters for a cozy everyday option, though I haven’t tried them myself.

For the men in your life, my husband wears the Unbound Merino Heritage Knit Sweater and the Unbound Merino men’s long sleeve. He says the long sleeve feels ultra soft.

What about price?

You might assume one fiber is the budget pick, but the brand matters more than the fiber.

When I checked, my Quince cashmere crewneck was about $50, and Quince merino sweaters were about $50 too. The Unbound Merino crewneck was $188.

So you can find both fibers at a friendly price. A higher price usually means you’re paying for the brand’s knit and finish, not for merino itself.

Or do what I do and wear both.

A merino base layer under a cashmere sweater is my go-to on the coldest days 🥶

Quick Recap: 6 Merino Wool vs Cashmere Differences

Warmth. Cashmere is warmer for its weight, like my Quince cashmere crewneck.
Softness. Cashmere usually wins, but thin merino like my Unbound Merino V-neck comes close.
Breathability. Merino handles sweat much better.
Durability. Merino is tougher, but my Quince cashmere crewneck is 4 or 5 years old.
Odor. Both air out well in my experience.
Travel. Merino for active days, cashmere like my Quince cashmere duster cardigan for cozy.

And there you have it. The 6 merino wool vs cashmere differences I’ve noticed since living on the road with both fabrics in my suitcase.

Cashmere is my pick for soft, cozy warmth, and merino is my pick for base layers and active days. On really cold days, you’ll probably catch me wearing both.

If you’re still deciding, start with the gap in your closet right now. Do you need a good base layer, or a good sweater?

Thanks for reading!

XO,

Aimara

PS: Leaning toward cashmere? See which Quince cashmere pieces made the cut in my honest review, including the crewneck I’ve worn for 4 or 5 years.

About the author:

Hi, I’m Aimara! I’ve been a full-time carry-on traveler since 2021. With Ways of Style, I help women travel lighter, dress better, and enjoy the packing process.

I own both fabrics, wear both on the road, and believe they’re both great, but different. That’s exactly why I wanted to write an honest merino wool vs cashmere comparison.

Merino Wool vs Cashmere FAQ

Is merino wool the same as cashmere?

No. Merino wool comes from Merino sheep, and cashmere comes from the undercoat of cashmere goats. They can feel similar in fine knits, but they’re different fibers with different strengths.

Is merino wool as warm as cashmere?

Not quite, ounce for ounce. Cashmere is warmer for its weight because its fine, crimped fibers trap more air. For that reason, it’s also less breathable. Merino is still very warm and better at regulating your temperature when you’re moving.

Is merino wool soft like cashmere?

Fine merino can come close. My 17.5 micron Unbound Merino V-neck feels as soft as my cashmere, but in thicker sweaters, cashmere usually feels softer.

Can you wear merino under cashmere?

Yes, and it’s my favorite way to wear them on cold days. A thin merino base layer handles moisture against your skin, and the cashmere sweater adds warmth on top.

Does cashmere pill more than merino?

Yes. Cashmere’s finer, shorter fibers pill more easily, especially in high friction spots like underarms. I wear my Quince cashmere a lot and don’t notice pilling. I own a Quince cashmere comb just in case, but I’ve never needed it.

Which is better for sensitive skin, cashmere vs merino wool?

Cashmere is often the safer bet. Wool fiber isn’t an allergen, but lanolin can be, and goats don’t produce lanolin (yes, cashmere comes from goats 😉). If you’d still like merino, look for superfine merino in the 17.5 to 19.5 micron range.

How often do you need to wash cashmere and merino?

Less often than you’d think. Good cashmere can be worn 4 or 5 times before washing, and both air out well between wears in my experience. I wash my cashmere and merino pieces on a cold delicate cycle and air dry them.

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Cashmere vs merino layering idea showing a camel cashmere crewneck sweater over an ivory merino wool base layer, with one sleeve pushed up to show the merino underneath

Is cashmere warmer than merino wool pin comparing a camel cashmere crewneck sweater and a black merino wool V-neck top side by side on a linen background

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