Keep a Wool Sock's Hand-Wash Claim Separate From Machine Care

Woolmark advises checking the product's care claim before deciding how to wash wool socks. Its machine-wash instructions apply to machine-washable socks, which are turned inside out and washed with a suitable wool or mild detergent. A wool cycle, or the recommended gentle alternative, belongs to that permitted method.

Socks labeled hand wash only follow a separate lukewarm-water routine. The distinction matters even when two pairs feel similar or contain the same broad fiber type. Woolmark also notes that airing wool socks can reduce unnecessary washing, so a care decision includes whether cleaning is needed as well as which treatment is allowed.