Frequently Asked Questions
Everything you need to know about our premium performance socks and the Darn Tough lifetime guarantee.
What is the Darn Tough Lifetime Guarantee?
Our guarantee is simple: if our socks aren't the longest-lasting socks you've ever owned, you can return them for another pair. No strings, no conditions, for life.
How do I find the right size for my socks?
We provide a comprehensive size chart on every product page. For the best fit, we recommend selecting a size that matches your standard US shoe size; if you are between sizes, we suggest sizing down for a snug, performance fit.
Where are Darn Tough socks manufactured?
Every single pair of our socks is knit in our Northfield, Vermont mills. We are proud to be American-made and stand by the quality of our local craftsmanship.
How should I care for my merino wool socks?
To ensure longevity, machine wash your socks on a warm, gentle cycle with the socks inside out. Tumble dry on low or air dry. Do not use bleach or fabric softeners.
How long does shipping take?
Standard shipping typically takes 3-7 business days within the continental United States. We also offer expedited shipping options at checkout for those who need their gear sooner.
What materials are used in your socks?
We primarily use premium Merino Wool for its natural moisture-wicking and antimicrobial properties, blended with Nylon and Lycra Spandex for durability and a perfect fit.