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Our unconditional lifetime guarantee is simple and without strings or conditions. 

If our socks are not the most comfortable, durable and best fitting socks you have ever owned, return them for another pair. 

No Strings. No conditions. For Life.

 NEW ADDRESS as of February 1st, 2024!
111 - 901 E Kent Ave. N
, BC
V5X 0K6

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Click image below to download the Warranty Form for Canadian residents:
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Please read the following carefully - there are no strings, we promise. We just want you to have the smoothest experience possible.


You’ve already taken the first step towards replacing your socks and allowing us to restore your trust in Darn Tough. For the next step, please follow these instructions:


1. Please read the Warranty FAQs below - most claims qualify for a replacement pair but there are a couple of rare exceptions. Also, please read the instructions below thoroughly.

2.  Prepare your claim:

  • Complete the warranty form. You can download a form from this page but If you don't have access to a printer, send a piece of paper showing your full name, mailing/return address, shoe size & preferred sock size, where you purchased the socks and how long you've had them along with the reason for your claim (comfort, durability or fit)

  • Please complete & send 1 form per 1 pair of socks unless you are sending multiples of the exact same sock.(ie. exact same - STYLE, COLOUR, HEIGHT, SIZE etc)

  • If you need a different size, please indicate it on the Warranty form in the section 'Preferred socks size', otherwise we will replace them with the same size as received. The sock size is woven inside the front cuff of each sock (you will see a capital letter - S, M, L, XL etc.). Please see the size chart below or click HERE.

  • Prepare your socks for mailing. They MUST be freshly washed.

  • Make them as flat as possible so they will fit in a letter sized envelope (8.5" x 11") to keep the shipping cost down (1 small envelope with 1 pair & form shouldn't be more than the cost of 1 stamp/$2.09!

  • Note - you may need more than one envelope but that is usually cheaper than mailing them together by parcel post. We need BOTH socks from the pair (a complete pair). Single socks will not be processed. Please double check that they are Darn Tough - we cannot warranty any other brands for you! ;)


3.  Take your socks and completed form to the post office. We do require the socks to be returned to us in order to process the warranty and you are responsible for that cost.

4.  If you request letter mail at the Canada Post counter, it should cost around $2.09 per envelope. Although we suggest letter mail, just to keep the costs down for you, please note that we are not responsible for lost socks and you may wish to consider getting tracking.

  • If you choose to trust the mail system (as we do) you can use an ordinary letter size (8.5" x 11") envelope - mailing your socks by letter mail and as flat as possible (rather than parcel post), will keep costs down considerably. Please don't tape your socks to the warranty form as we need to use the form!

  • We will send the replacement socks to you by this same method (and we pay the postage for that, which is why we know that Letter Mail is the most cost effective!)

  • Mail to OUR NEW ADDRESS:

                    Interex Industries Ltd.

                    Darn Tough Warranty

                    111 - 901 E Kent Ave. N

                     Vancouver, BC

                     V5X 0K6

5.  The final step, once we receive the socks & form, is for us to inspect the socks and record any wear areas (this helps us make better socks!)

  • We DO NOT contact / inform our customers once we receive the socks. 

  • Once checked, we record your information into our system, then mail out a comparable replacement to you as soon as possible.

  • We understand that you want your awesome new socks as soon as possible but please allow 8-10 weeks for processing and shipping before contacting us to follow up.

  • Occasionally, there may be a longer delay due to unavailability of stock (we are limited by the Darn Tough mill availability). We will send you a comparable sock as soon as we can but sometimes there are no comparable styles available and we must wait for the mill to knit some more! 

  • Sometimes, if you sent multiple pairs we are unable to send all pairs back at the same time due to stock availability. Rather than have you wait, we send back what we can. The remaining pairs will remain on file until we can fulfill your warranty claim. 

  • We ship replacement pairs in separate envelopes (up to 4 pairs) so please note that they might be delivered on different days!

  • Although we do our best to match the socks as CLOSE as possible, we usually have to make a substitution as the style / colour may no longer be in production or not currently in stock. If this is the case, we will replace the socks with a comparable style (height, cushion/weight, size & usage category) in accordance with the warranty policy. We try our best to send as 'like' as possible but if you are unhappy with what you receive, please note that it is not grounds for an exchange.

We hope that you continue to enjoy your Darn Tough socks for many years to come and continue to purchase them from our authorized retailers.

Thank you for supporting our brand!

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What does your warranty cover?

If they are not the most comfortable, durable, best fitting socks you have ever owned return the pair to us for another pair.


Things that are not covered

Socks that disappeared in the laundry, or that the dog ate, or got too close to camp fire, or were lost due to theft by friend or foe, or singles - we only warranty pairs (single socks are not accepted)  

Can you send warranty replacements before I send in my worn out socks?

It is our policy that we first receive the socks to be replaced so we can examine them. This allows us to ensure that we’re addressing any issues that the worn sock might illustrate.

How do you ship them back to me?

We ship multiple pairs in multiple envelopes and they may not be delivered on the same day. Please allow a few more business days for the socks to show up. The may also be a delay caused by lack of stock in exact or comparable styles. But we keep all details of your claim on file and will send you replacements as soon as they become available from the mill.

How long will it take for me to receive replacement socks?

Please allow 6-8 weeks. 

What if I need a different size - the socks are too small/too big?

No problem! Please have a look inside the front cuff of each sock to see what size you currently have and if you need a smaller/bigger replacement, please indicate it on the Warranty claim form in the section 'Preferred socks size' and we will go from there. Otherwise, we will replace your socks with the same size as received. 

Does your guarantee include losing socks? Would you sell me just one sock?

While it’s pretty darn comprehensive, our guarantee does not cover sock loss and we don’t sell single socks. Our guarantee applies to socks that have not met expectations relating to comfort, durability and fit.

Does the warranty still apply if I dye my socks a different color or if I cut down my socks to make a smaller size?

No, when a customer alters the sock in any way, through resizing or dyeing, they have voided our warranty. Dyes are chemicals that can adversely affect the materials we use to make our socks and resizing damages their structural integrity.

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