How to Pick the Right Running Socks - FITS®

April 09, 2020

Running socks for men and women are an important part of your training regimen. Without the right running socks, you increase your risk of blisters or discomfort during your run, making you more likely to cut your route short on a training run or — worse —not perform as well during a race. You deserve to focus on your run without worrying about your socks. But how do you know which running socks are right for you?

Of course, personal preference plays a big role here. So, while we can’t tell you exactly which running sock is the right choice for you, we can give you a breakdown on the benefits and advantages of each particular type.

Let’s start with weight. We have three carefully constructed weights to choose from: 

  • Light
  • Micro Light
  • Ultra Light

While all of these options aim to prevent blisters with optimal breathability and moisture-wicking materials, the support they offer is slightly different.

Our light running socks offer the most support, so they make a great choice for longer distances where you want more cushioning. Make no mistake: these socks are anything but heavy; however, they are the “thickest” of the three options.    

Our micro light running socks are the perfect happy medium: not as thick as the light, but still offering some support. The cushioning is subtle, but still there. 

Our ultra light running socks are the lightest fit, designed to feel nearly-invisible on your feet. The flat knit design promises zero bulk and there’s no footbed cushioning. 

So, which sock is right for you? Well, many runners find a variety nice to have on hand to suit different run lengths and outside temperatures. Others find themselves loyal to a particular weight and don’t like switching it up. 

Beyond weight, there’s also length to consider. With no show, low, mini-crew and quarter lengths to choose from, you can find a running sock to suit every shoe and workout outfit you have. 

Ultimately, the choice is yours. When in doubt, try them out and find your favorite(s). 

See your choices.



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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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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