There are multiple benefits to wool socks: aside from having to wash less frequently (and let’s face it, who actually enjoys doing the laundry?), it also means you can pack less socks when travelling, leaving more room in your suitcase for other things. Wool also has a host of natural benefits such as breathability - so your feet will tend not to get hot and clammy, which is particularly good during exercise.
One of the major selling points for wool socks is that they don't need to be washed as often as socks made from other fibres, such as cotton or synthetics. By letting your wool socks air overnight, there’s a high chance you can wear them again the next day and they will continue to feel fresh and comfortable, and won't smell.
But, when it does come time to wash your wool socks, treat them the same as washing wool clothes. If you still have the product’s care claim then it’s best to follow these instructions.
If your socks are Hand Wash Only, then hand wash in clean, lukewarm water, approximately 30°C, using a mild and gentle detergent. Allow to soak for a period of 10 minutes before rinsing thoroughly firstly in lukewarm water, then finally in cold water. Remember, if in doubt, hand wash is the best option.
Machine washable wool socks should be washed on the wool setting (usually gentle action at 40°C). If your washing machine does not have a wool cycle, then it is recommended to use the cold water wash or wash cycle for delicates.
The Woolmark Company has released a Wool Care Guide app, placing information on apparel care at the tip of your fingers. Available for all Apple and android devices, the Wool Care Guide app can be downloaded free-of-charge via the Apple App Store or Google Play Store.