Darn Tough Sock Sizing, Washing and Lifetime Guarantee Guide
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Start with your shoe size and the chart for the Darn Tough sock you are buying. For care, Darn Tough recommends turning socks inside out and washing cold on a gentle cycle. Its lifetime guarantee is a manufacturer program with a claim process, separate from a store return policy.
This guide covers those practical details so you can shop our Darn Tough assortment with fewer surprises. For help comparing sizes and footwear, visit Red Beard’s Outfitter in Mobile.
Use the right sock size chart
A medium in one sock range does not necessarily fit the same shoe sizes as a medium in another. These common adult sizes come from Darn Tough’s official size charts.
| Sock range | Small | Medium | Large | Extra large |
|---|---|---|---|---|
| Men’s / unisex, US men’s shoe sizes | 5.5 to 7.5 | 8 to 9.5 | 10 to 12 | 12.5 to 14.5 |
| Women’s, US women’s shoe sizes | 4.5 to 7 | 7.5 to 9.5 | 10 to 11.5 | 12 to 14 in select styles |
The chart is a sizing reference, not a statement that we stock every listed size. Check the exact product. Darn Tough recommends sizing up when you fall between its size categories.
Check fit with your footwear
The heel should sit in the sock’s heel pocket, with the fabric smooth through the foot. If material folds under your toes or at the heel, reassess the size and how the sock is sitting. A close fit should still feel comfortable inside your shoe. Compare cuff coverage as well as foot length.
Bring your shoes or boots when asking for help. Changing from a thin running sock to a more padded sock changes the space available inside the same shoe. Our style and cushioning guide explains that choice.
How to wash Darn Tough socks
- Turn the socks inside out.
- Machine wash in cold water on the gentle cycle.
- Do not bleach or dry clean.
- Hang dry or tumble dry on low.
These steps follow Darn Tough’s product and sock care instructions. Check your pair’s label as well.
How the lifetime guarantee works
Darn Tough backs its socks with an unconditional lifetime guarantee. Its current US process asks you to complete an online claim, send the socks and claim form to the manufacturer, and receive a credit code for the replacement value after processing. You arrange the return shipment. Read the current manufacturer guarantee and claim instructions before submitting a claim.
Darn Tough excludes seconds and irregulars. Its current terms also address alterations such as resizing or dyeing. Keep the manufacturer’s current instructions as the reference rather than assuming that a lifetime guarantee means a pair can never wear out.
Can I get an immediate warranty exchange at Red Beard’s?
Call us before bringing a pair for a warranty question. Darn Tough identifies participating in-store exchange locations separately through its Authorized Warranty Center filter. This guide does not promise an immediate exchange at our store.
Does the manufacturer guarantee replace the store’s return policy?
No. Use Darn Tough’s instructions for a manufacturer warranty claim. For a purchase return, check Red Beard’s current return policy and contact our team about your order.
Get help choosing socks in Mobile
Visit Red Beard’s Outfitter at 51 Kenneth Street, Mobile, AL 36607. Bring the shoes or boots you plan to wear and tell us about your usual day. Call 251-217-7466 to check a particular style, size or color before making a special trip.
Sources and review
Darn Tough size chart; sock care FAQ; manufacturer guarantee. Product details reviewed October 15, 2026. Check the linked product pages for current prices, sizes and availability.