Tactical Socks - Merino Wool Socks | FITS®

For years we have built, tested, and developed the best fitting, best performing tactical socks with the finest premium merino wool for athletes, elite operators, and anyone who pushes themselves to the limit. You know there are no days off, and your feet cannot fail you when it matters most. FITS tactical boot socks help you perform and feel your best.


Best Performing Tactical Socks

FITS® worked directly with US Special Forces elite operators to develop our tactical socks. We understand that some tasks are more critical than others. For that reason, we built

FITS tactical boot socks to eliminate all potential sock-related problems.


When operating at the highest level, with the highest stakes, you need tactical boot socks that you can depend on. The best performing materials are essential for making the best performing tactical socks. We use 18.5 micron in a majority of the sock and 23.5 micron for durability in the heel and toe. This provides a better fit, a much higher level of comfort, and elevated durability where it matters most.


Jon - Crew tactical socks offer extra support in the foot, heel, and toe. These tactical socks are made to take a beating and will perform beyond your expectations. They feature our patented Full Contact Fit® that hugs the contours to your foot and stays put, eliminating loose socks that could rub your feet the wrong way.


For those who like a little more cushioning but don’t want a heavy sock, check out the Operator - Crew. For years, these FITS tactical boot socks have been the go-to sock for serious hikers and outdoor enthusiasts who know the difference their socks can make. These tactical socks have seen duty on all the National trails and remain an essential part of our hikers' equipment.


Because our tactical boot socks feature our patented Heel Lock®, they won’t slip, bunch, or rub. The deep heel pockets lock the sock onto your heel to prevent blisters, so you are free to push yourself to the limit knowing your feet will stay protected.


Best Fitting Tactical Boot Socks

At FITS®, we are proud to do things differently. We are dedicated to keeping the tradition of American manufacturing alive. Our third and fourth generation textile manufacturers take the time to do things right. FITS tactical boot socks are made using the finest materials available to craft something you’ll love that lasts. The mission is simple: deliver the best fitting, most comfortable feeling sock ever made. 


FITS tactical boot socks are also available with light cushioning. The Light Tactical - Crew provides the same durability and comfort as our other tactical socks, with slightly lighter cushioning. These tactical socks are the perfect lightweight field sock. The 100% merino wool interior provides excellent moisture control and comfort, while the nylon exterior provides maximum durability and abrasion resistance.


For a slightly taller option, try the Light Tactical - Boot. Merino wool lines the inside of the sock and feels great next to the skin. Built with nylon on the outside of the sock for increased durability, this anti-microbial and flame-resistant tactical boot sock rises just below the calf.


No matter the situation or challenge before you, FITS® tactical socks have you covered.



Sock Sizing
women and men size chart

The Perfect Fit Starts With the Right Size.

Your sock size shouldn’t be a guessing game. Our socks range from small to double XL, but the best way to know the perfect fit for you is to match your shoe size to the chart on the left. That way, you’ll know the size you select will give you the fit and feel you expect.

Between sizes? Go with your gut, but rest assured that your socks will still fit great. If you receive your order and find yourself wishing you’d gone up or down a size, just let us know. We’ll happily send you replacements for your preferred size.

Concerned about laundry mix-ups? All FITS® socks are coordinated by color and size, based on the colors you see on the size chart. So, you won’t have to worry about mixing up your sizes with the other FITS® wearers in your home. (But stray socks mysteriously going missing in the dryer? Unfortunately, we can’t help with that.)


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The Light Hiker is perfect for everything from big adventures to everyday wear.
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How Do You Determine Sock Size?

Sock sizes are typically measured in inches, not by your shoe size. So, a sock size 6-8 will comfortably fit someone whose feet are between six and eight inches long. However, at FITS®, we make it easy for you to choose the ideal sock size without having to measure your foot. Simply use our sock size conversion chart based on your shoe size to select the right fit for you. 

How Do You Measure Your Foot for Socks?

To measure your foot for socks, measure the length from the heel of your foot to the tip of your longest toe. The measurement in inches correlates to your sock size. For example, if your foot is 10 inches long, a sock size 9-11 should fit you comfortably. At FITS®, you can skip this step and find your sock size based on your shoe size using our conversion chart. 

What Is the Sock Size Conversion?

The sock size conversion refers to sock size compared to shoe size. While all companies may vary slightly on which size socks to purchase based on your shoe size, you can always measure your foot to find the right fit for you. 

What is Sock Size to Shoe Size?

Because sock sizes are determined by the length of your foot in inches vs. your shoe size, shoe and sock sizes differ. The FITS® sock size to shoe size conversion is as follows:

Knowing this makes it easy to choose the ideal sock size based on your shoe size without measuring your foot. 

What Age is Sock Size 9-12?

Sock sizes typically don’t correlate with age. For kids, age can be a general indicator of what size sock they’ll need, but everyone is different. An adult sock size 9-12 fits anyone whose feet are approximately nine to twelve inches long. For kids’ sock sizing, check with the company to find exact details to ensure your little one gets the perfect fit. 

Got more questions about finding the perfect sock size for you? Let’s talk.



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