Sock guide

Everything about socks
for men.

Care, size, wear: clear answers to the questions people ask about socks.

✔ Care✔ Size✔ Wear

Three rules are enough to keep good socks for a long time: choose the size range that matches your shoe size, wash at 30 or 40 degrees, inside out and without fabric softener, and rotate several pairs. Most holes come from a size that is too small, toenails that are too long or heat when drying. The guides below cover each point in detail.

Choose your question

Each guide answers one specific question, in full.

How to wash your socks

The right temperature for each material, drying, the mistakes that slacken the elastic and how to keep whites really white.

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Which sock size should you choose?

Size ranges by shoe size, the right fit at the heel and toe, and what to do between two sizes.

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Why socks get holes

The causes of holes at the heel and toe, six habits for prevention, and when to darn or replace.

Read the guide →

Common questions in one sentence

The short answer. The details are in the guide indicated.

QuestionShort answerGuide
At what temperature should you wash socks?30 or 40 degrees, inside out, without fabric softenerWashing
Can they go in the tumble dryer?Only at a low temperature, air-drying is betterWashing
Which size for shoe size 42?Usually the 39-42 rangeSize
What to do between two sizes?Thin socks: the larger rangeSize
Why holes at the big toe?Toenails too long or sock too smallWear
How many pairs to rotate?Seven to ten with one wash a weekWear

Branded socks, every month

For yourself or as a gift.

Branded socks, every month

UNDY is a Swiss subscription that delivers a pair of branded socks in your size, from 39 to 46, to your letterbox every month, with free delivery. Most styles are made of a cotton and polyester blend. As a gift, the subscription runs for 3, 6 or 12 months and ends automatically. The recipient chooses their own size on activation.

As a gift

Sock gift

3, 6 or 12 months, ends automatically.

from CHF 39.90
3-month term · no renewal
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What people often ask

What makes socks last?
The right size, washing at 30 or 40 degrees without fabric softener, air-drying and rotating several pairs.
Which material for everyday socks?
A cotton and polyester blend is a good choice for every day: it stays soft, keeps its shape well and can be washed at 40 degrees. Wool or merino are best suited to cold weather.
Does UNDY deliver socks in my size?
Yes. You enter your exact shoe size, from 39 to 46, and you can change it at any time in your customer account.
Can you give UNDY socks without knowing the size?
Yes. With the gift, the recipient enters their own size on activation.

New socks, every month.

From CHF 12.50 per month, sizes 39 to 46, with free delivery.