All our socks are made with 18.5m superfine knit, suit-grade performance Merino wool.
Our custom blend of man-made fibers selected for the best breathability and fit.
By far the most comfortable fitting PT sock I have ever worn. FITS socks are tough, long lasting, high performance grade socks that answer all the needs of keeping my feet comfortable and minimizing fatigue from strenuous physical activity. I am also able to get several days of use with the same pair without sacrificing freshness.
These socks are breathable, comfortable and well made!
I bought these for my daughter. She loves them and her feet don't stink in them either.
Everything I wanted
Love the quality but the sizing could be better. I’m a size 13 and the XL is tight but fits so I purchased the XXL for sizes 13 up and the fit just like the XL. Just as tight.
These are the best socks I have ever spent money on.
A quality product
Love the comfort and on seams bugging my toes.
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.)
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.
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.
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.
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.
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.