How to Wash Wool and Alpaca Socks Without Ruining Them

Wool and alpaca socks are worth taking care of. The fiber costs more, performs better, and lasts longer — but only if you treat it right. The upside: it's not complicated.

The short version

Cold water. Gentle cycle. No high heat in the dryer, or hang dry. That covers 90% of it.

What actually harms wool and alpaca fiber

Hot water is the main culprit. Above roughly 104°F (40°C), wool fibers begin to felt — they mat together, shrink, and the structure you paid for is gone. This happens fast, and it's permanent.

Harsh agitation does the same thing more slowly. A normal wash cycle spins and churns the fabric. For delicate fibers, this causes pilling and felting even in cold water.

Fabric softener coats the fiber and reduces its natural moisture-wicking ability. Skip it.

Hand washing (the safest option)

  1. Fill a basin with cool or lukewarm water — not hot.
  2. Add a small amount of wool wash or gentle detergent (a teaspoon is enough).
  3. Submerge the socks and gently squeeze the water through. No wringing, no scrubbing.
  4. Rinse thoroughly in cool water until the detergent is gone.
  5. Press excess water out gently by rolling the socks in a dry towel. Don't wring.
  6. Lay flat to dry, or hang at the toe end.

Machine washing (if you're going to do it)

Most of our socks are machine washable, and a lot of people skip the hand wash step. If you do:

  • Use the wool, delicate, or hand wash cycle on your machine — whichever is lowest agitation.
  • Cold water only.
  • Use a mesh laundry bag for extra protection.
  • Gentle or mild detergent — not regular laundry detergent.

Drying

This is where most people go wrong. Heat is the enemy. Options:

  • Hang dry — the safest. Hang from the toe to avoid stretching the cuff.
  • Lay flat — reshape while damp, let air dry.
  • Dryer — if you do this, use the lowest heat setting possible, or a no-heat air-dry cycle. Even then, do it sparingly. Repeated dryer cycles shorten the life of any wool item.

How often should you wash them?

Less often than you probably think. Wool and alpaca are naturally odor-resistant — the fiber's structure inhibits bacterial growth. If you wore the socks for a few hours, aired them out between wears, and they don't smell, they probably don't need washing yet. Most dedicated wool sock wearers wash after 3–5 wears under normal conditions.

Pilling

Some pilling is normal on high-contact areas (heel, toe, inside the ankle). This is caused by abrasion, not washing. A fabric shaver removes pills without damaging the sock. It's worth buying one if you invest in quality socks.

The bottom line

Cold water, low agitation, no high heat. Follow those rules and a well-made wool or alpaca sock will outlast a handful of synthetic pairs. The Winter Wool Sock, the Heavy Wool Sock, and the Alpine Alpaca Sock are all built to last — the care just makes sure they do.