What polyamide is in socks and why it is there
Short answer: Polyamide is a synthetic fibre, also called nylon, and it is used in socks to make them stronger and better at keeping their shape. Bamboo viscose is soft but does not give much spring on its own, so a small share of polyamide helps the sock hold its form.
What kind of fibre polyamide is
Polyamide is a fibre made from chemical raw materials, and you know it from many everyday things such as tights, bags and sportswear. It is thin, strong and hard wearing. When it is used in a sock, it usually sits together with a softer fibre, so you feel the softness while the polyamide works in the background.
Why bamboo is often blended with something else
Viscose made from bamboo is soft and pleasant against the skin, but the fibres are not very elastic, and they can go slack after several washes. That is why makers often blend in a little polyamide and elastic. Have a look at bamboo socks for women and read the material list on each pair, and you can see for yourself what is in them.
Strength at heel and toe
It is mainly at the heel and toe that a sock wears out, and here polyamide makes a big difference, because the fibre handles rubbing better than soft plant fibres alone. Many socks therefore have a little extra polyamide at exactly those two places. It is a simple way to make the sock last longer without making it stiff.
Shape and fit over time
A sock with nothing to pull it back easily goes slack around the ankle and calf. Polyamide and elastic help keep it in place, so that it does not roll down into the shoe. That does not mean more is always better, because too much stretch can feel tight, so try out a fit you like.
Drying time and moisture
Polyamide takes up very little water in the fibre itself, so socks with a share of it can dry faster after washing. That is practical if you wash often or travel. At the same time it is the bamboo fibres that handle moisture from the foot, so the two fibres complement each other when a sock is worn all day.
If you are sensitive to materials
Most people tolerate polyamide without problems, but if you have very sensitive skin or have had itching from socks before, read the material list before you choose. You can also start with a single pair and wear it for a day. If you are unsure about your health, talk to your doctor. See also all bamboo socks for women.
Washing and care of blended socks
Wash at the temperature on the label and avoid very high heat in the tumble dryer, because synthetic fibres can turn hard and lose their shape. Turn the socks inside out and use a mild detergent without fabric softener, which can leave a film on the fibres. Air drying is gentle and rarely takes long.
How to read the material list
On the label the fibres are listed in order of how much of each there is. If bamboo viscose comes first, it is the main fibre, and polyamide and elastane follow. You can use the list to compare pairs, but figures in percent do not say everything about how the sock feels. Feel for yourself, and also look at bamboo bra without underwire if you want the same comfort elsewhere.
Frequently asked questions
Is polyamide the same as nylon?
Yes, nylon is the best known name for polyamide. Both words cover a synthetic fibre that is used in socks because it is strong and thin.
Why does a bamboo sock say polyamide?
Bamboo viscose is soft but not very elastic. A small share of polyamide and elastic helps the sock keep its shape and withstand wear at the heel and toe.
Can polyamide cause itching?
Most people do not experience it, but skin differs. Read the material list, try a single pair, and talk to your doctor if you have repeated problems.
See our range of men's bamboo socks.
