Hirsch Natur · 100% Organic Wool Plush Sole Socks
Hirsch Natur Unisex Plush Sole Socks in 100% Organic Virgin Wool
Thick, warm adult wool socks with a soft plush sole, knit in Germany from mulesing-free wool from controlled organic farming (kbT). Pure wool from cuff to toe, with no synthetic fibers, for cold floors, cold feet, and winter boots.
The maker
Hirsch Natur: German Sock and Legwear Specialists
Hirsch Natur is a German natural-fiber brand that focuses on socks and legwear. Their wool socks are made in Germany from untreated natural wool sourced from controlled organic animal husbandry, with environmentally conscious practices across the production process. For buyers searching for real 100% wool socks rather than wool blends padded out with nylon or acrylic, Hirsch Natur is one of the few makers that still knits them this way.
When to wear them
Warm Wool Socks for Cold Feet, Cold Floors, and Winter Boots
These are cold-weather socks. The plush sole adds a soft, cushioned layer under the foot, and the 100% wool construction keeps feet warm while still letting them breathe, so they stay comfortable instead of clammy. They are unisex and sized for adults, from women's US 6 to men's US 13.5.
Good uses include:
- Cold days at home — paired with slippers or house shoes on chilly floors
- Winter boots — a warm, breathable layer inside insulated footwear
- Sleep socks — for people whose feet run cold at night
- Everyday winter wear — under roomy shoes on cold days
Materials & construction
What These Wool Socks Are Made Of
100% virgin wool
Pure, untreated virgin wool — no nylon, polyester, acrylic, or elastane blended in. Virgin wool is new wool that has not been recycled from previous textiles.
Plush sole
The sole is knit with a soft plush pile on the inside, adding cushioning and an extra layer of warmth underfoot. The ribbed leg and elastic cuff hold the sock in place without digging in.
kbT organic wool
kbT (kontrolliert biologische Tierhaltung) means the wool comes from certified organic livestock farming with strict animal welfare standards.
Mulesing-free, made in Germany
The wool is sourced from sheep that have not undergone mulesing. The socks are manufactured in Germany.
Key features
Why Choose 100% Wool Socks
Warm without overheating
Wool is temperature-regulating: it holds warmth when feet are cold and releases excess heat, so feet stay warm in boots or bed without becoming sweaty.
Breathable and moisture-absorbing
Wool fibers absorb moisture vapor and release it gradually, which helps feet feel dry rather than damp in winter footwear.
Naturally odor-resistant
Wool resists odor naturally, so these socks can often be aired out between wears rather than washed after every use.
Pure wool, no synthetics
One fiber from cuff to toe — for buyers who want genuine 100% wool socks from organic, mulesing-free sources.
Sizing
Hirsch Natur Adult Sock Size Chart
Measure the foot from the back of the heel to the tip of the longest toe and compare with the heel-to-toe length below.
| Size |
EU Size |
US Women |
US Men |
Heel to Toe |
| X-Small |
36–37 |
6–7 |
— |
8 in |
| Small |
38–39 |
8–9 |
6.5–7.5 |
9 in |
| Medium |
40–41 |
10–11 |
8.5–9.5 |
9.5 in |
| Large |
42–43 |
— |
10.5–11.5 |
10 in |
| X-Large |
44–46 |
— |
12.5–13.5 |
11 in |
Between sizes?
Choose the larger size. The plush sole adds some thickness, and a little extra room keeps the sock comfortable inside boots and slippers.
Honest assessment
Is This the Right Wool Sock for You?
Works well for
People with cold feet, anyone looking for genuine 100% wool socks without synthetic fibers, winter boot wearers, and buyers who prioritize organic, mulesing-free wool made in Germany.
How to make them last
These socks are made from untreated, natural wool with no synthetic sole reinforcement. That keeps them soft, but it also means friction on rough surfaces can thin the fibers over time. To extend their life significantly, pair them with slippers indoors. A slipper or house shoe worn over the sock protects the delicate sole fibers from everyday friction on hardwood, tile, or carpet and keeps the socks looking and feeling like new.
Care and sensitivity
Wool needs gentle washing, and hand washing is the preferred method. A small percentage of people are sensitive to wool. If you have reacted to wool before, wear them for a short time first to check comfort, or consider the Hirsch Natur 85% organic cotton / 15% wool socks as a gentler alternative.
Care instructions
How to Wash 100% Wool Socks
Hand wash preferred Cold water, max 30°C / 86°F Wool detergent Do not wring Lay flat to dry No tumble drying
Hand washing (recommended): Turn the socks inside out and wash in cold or lukewarm water, no warmer than 30°C / 86°F, with a wool-specific detergent such as Eucalan or Sonett wool wash. Swirl gently without rubbing, and keep the rinse water the same temperature as the wash water. Press the water out with a towel — never wring — then reshape and lay flat to air dry away from direct heat.
Machine washing: Only use a machine with a dedicated wool cycle, cold water, wool detergent, and a low spin speed. Standard cycles, warm or hot water, agitation, and tumble drying will felt and shrink wool permanently.
About shrinkage
Wool shrinks when it is washed incorrectly. EcoAble is not responsible for shrinkage caused by improper washing routines, including warm or hot water, regular machine cycles, or tumble drying.
Between washes, airing the socks out is often enough. Wool resists odor naturally, so less frequent washing helps the fibers last longer.
FAQ
Hirsch Natur Plush Sole Wool Socks: Common Questions
Are these socks really 100% wool?
Yes. Hirsch Natur Plush Sole Socks are made from 100% virgin wool from controlled organic farming (kbT), with no nylon, polyester, acrylic, or elastane added.
Are wool socks good for cold feet?
Yes. Wool is temperature-regulating and holds warmth even when it absorbs some moisture, and the plush sole adds an extra warm layer underfoot. Many people with cold feet also wear them as sleep socks.
Will wool socks make my feet sweat?
Wool is breathable and moisture-absorbing, so it releases excess heat and moisture vapor rather than trapping it. This helps feet stay warm without becoming clammy, including inside winter boots.
Can I wear these socks around the house without slippers?
They are made from untreated natural wool with no synthetic sole reinforcement, so friction on hardwood, tile, or carpet can thin the sole over time. For the longest life, pair them with slippers or house shoes indoors.
How do I wash 100% wool socks without shrinking them?
Hand washing is preferred: cold or lukewarm water no warmer than 30°C / 86°F, wool detergent, no wringing, and lay flat to dry. Machine washing is possible only on a dedicated wool cycle with cold water and low spin. Never tumble dry. EcoAble is not responsible for shrinkage caused by improper washing routines.
What size should I order?
Measure your foot from heel to longest toe and match it to the size chart: X-Small (8 in, EU 36–37), Small (9 in, EU 38–39), Medium (9.5 in, EU 40–41), Large (10 in, EU 42–43), X-Large (11 in, EU 44–46). If you are between sizes, choose the larger size.
What do kbT and mulesing-free mean?
kbT (kontrolliert biologische Tierhaltung) means the wool comes from certified organic livestock farming with strict animal welfare standards. Mulesing-free means the sheep have not undergone mulesing, a painful procedure used on some conventional wool farms.
