Cashmere vs wool
Both are natural protein fibers. The difference comes down to which animal produces them, how fine the fiber is, and what that means for softness, price, and durability. Cashmere comes from goats and is finer. Wool comes from sheep and is more durable. Neither is universally better — the right choice depends on what you need the garment to do.
| Cashmere | Merino wool | Standard wool | |
|---|---|---|---|
| Animal | Cashmere goat | Merino sheep | Various sheep breeds |
| Fiber diameter | 14–19 microns | 15–24 microns | 28–38+ microns |
| Softness | Exceptional | Excellent | Variable (can be scratchy) |
| Warmth per weight | Very high | High | Moderate to high |
| Durability | Lower — pills more | Good | High |
| Care | Hand wash or dry clean | Often machine washable | Hand wash or gentle cycle |
| Price | High | Moderate to high | Lower |
| Annual yield per animal | 150–200g | 4–10 kg | 2–6 kg |
What is the difference between cashmere and wool?
Wool comes from sheep; cashmere comes from goats — specifically the fine undercoat of cashmere goats such as the Changthangi. Cashmere fiber is significantly finer than most wool: 14–19 microns compared to 28–38 microns for standard wool. That fineness makes cashmere softer and lighter. Merino wool, at 15–24 microns, is the closest comparison in fineness. Cashmere is more expensive because each goat produces only 150–200 grams of usable fiber per year, compared to 2–10 kilograms from a sheep. Wool is generally more durable.
Is cashmere warmer than wool?
Cashmere provides more warmth per unit of weight than most wool grades. The very fine fiber diameter creates more air pockets relative to mass, making it an efficient insulator. However, fine merino wool (15–18 microns) is close to cashmere in warmth and is significantly more durable. Coarser wool grades have lower warmth-to-weight ratios but better durability and weather resistance. For highest warmth-to-weight, cashmere or superfine merino are the strongest natural fiber options.
Is cashmere softer than wool?
Cashmere (14–19 microns) is softer than standard wool (28–38 microns). The softness of any animal fiber is primarily determined by fiber diameter — the finer the fiber, the softer it feels against skin. Merino wool at 15–18 microns is comparable to or approaching cashmere softness and is often indistinguishable to most wearers. Standard wool can feel scratchy because coarser fibers create a prickling sensation on skin. Cashmere is consistently soft across the range of natural fiber clothing.
Which lasts longer, cashmere or wool?
Wool is more durable than cashmere. The same fiber fineness that makes cashmere exceptionally soft also makes it more prone to pilling, snagging, and wear through. Cashmere garments need more careful handling — hand washing, pilling removal, careful storage — to maintain their appearance. A well-maintained cashmere sweater can last for many years, but a merino or heavier-weight wool sweater worn the same way will typically outlast it. If durability matters more than maximum softness, merino or mid-weight wool is the better choice.
Is cashmere worth it over wool?
Cashmere is worth choosing when maximum softness and lighter weight are the priority, and you are willing to care for it carefully. It is not worth choosing over merino wool if you want something you can machine wash, wear frequently, or treat roughly. Merino wool in fine grades (under 18 microns) approaches cashmere softness at lower cost with better durability. For elevated knitwear worn occasionally and cared for properly, cashmere is a genuine step up. For everyday wear, the case for cashmere over fine merino is harder to make.
How do you tell the difference between cashmere and wool?
By feel, high-quality cashmere is distinctly soft and lightweight, without the slight prickling that even fine wool can sometimes have. Both pass the burn test similarly — protein fibers smell like burning hair and leave crumbling ash. Price is a reliable proxy: genuine cashmere is not cheap. Very inexpensive "cashmere" is often blended with wool or lower-grade fiber. The fiber content label is the most reliable indicator. Certified cashmere from programs like the Good Cashmere Standard will have documentation.
Can you wear cashmere and wool the same way?
Mostly, but cashmere needs more care. Both work for knitwear, scarves, coats, and layering. Cashmere is lighter and more delicate, so it is less suited to rough outdoor use, frequent washing, or high-abrasion situations like backpack straps. Wool, particularly heavier grades, handles weather, moisture, and friction better. Fine merino is the exception — at similar micron counts to cashmere, it is more versatile across conditions while being nearly as soft.