Wash Darn Tough socks inside out in cold water on a gentle cycle and dry them on low heat or air dry.
Getting the most from a pair of Darn Tough socks comes down to one thing: keeping the merino wool blend intact. The good news is that the care routine is short, and the rules are few. The brand’s official guidance covers washing, drying, and what to avoid—and it applies across the whole line, from lightweight runners to heavyweight hikers.
The Simple Daily Wash Routine
Darn Tough’s care steps are straightforward enough to memorize after one wash. Start by turning the socks inside out so the fibers that touch your skin get the cleaning action, then use your machine’s gentle cycle.
- Turn socks inside out before washing to clean the fibers that sit against your skin.
- Wash cold on a gentle cycle. Hot water is the fastest way to damage wool and spandex.
- Use a mild detergent with a neutral pH. Darn Tough’s blog specifically names Nikwax Wool Wash as a wool-friendly option.
- Skip bleach, fabric softener, and dry cleaning entirely—each one breaks down the sock’s structure.
That is the whole wash sequence. No special settings, no hand-washing required, and no soaking steps. A standard household machine handles the job fine on the gentle cycle.
How To Dry Them Without Ruining The Wool
Drying is where most socks get damaged, and the fix is simply to keep the heat low. Darn Tough allows tumble drying on low or hanging them to air dry, with air drying framed as the gentler choice.
If you have the time, hanging them takes the risk to zero; if you need them dry fast, the low-heat tumble cycle is perfectly acceptable.
One note on fit: Darn Tough socks are preshrunk, but they may feel snugger right after washing. That is normal and not a defect—the fit settles back out as you wear them.
How Often Should You Wash Them?
Less often than you think.
When they do get dirty—after a muddy trail day or a gritty work shift—wash them right away rather than letting the grime settle into the fibers. The same cold-water, gentle-cycle routine applies regardless of which sock line you own; the official care pages do not differentiate by activity, gender, or product type.
If you are comparing options before your next purchase, our roundup of the most durable socks covers how Darn Tough stacks up against other long-wearing brands.
FAQs
Can I put Darn Tough socks in the dryer?
Yes, but only on the low-heat setting. Darn Tough’s official care guidance permits tumble drying on low, with air drying listed as the gentler alternative. High heat risks shrinking the wool and breaking down the spandex, so keep the dial low or skip the dryer entirely.
What detergent is safe for merino wool socks?
A mild detergent with a neutral pH is the safe choice. Darn Tough’s blog recommends Nikwax Wool Wash specifically, since it is formulated for wool fibers. Avoid bleach and fabric softener, as both strip the natural oils from merino wool and shorten the sock’s lifespan.
Do Darn Tough socks shrink in the wash?
Washing in hot water or drying on high heat can still cause damage and distortion. A snugger fit right after washing is normal and not considered a defect.
References & Sources
- Darn Tough. “FAQs: Sock Care.” Official care guidance covering washing, drying, and sizing.
- Darn Tough Help Center. “How do I wash my Darn Tough socks?” Step-by-step washing instructions from the official support site.
- Darn Tough Blog. “How to Wash and Care for Hiking Socks to Last Years.” Brand blog on merino wool care and wash frequency.