Representing the United States with Ultra-Marathoner and Snowshoe Runn - FITS®

October 07, 2019

For most people, running 100 miles is anything but natural. However, Cole Crosby describes his journey to becoming an ultra-marathoner as a “logical, natural progression.” After running cross country and track throughout his school years — including as a walk-on at the University of Oklahoma — Cole decided to train for the Oklahoma City Marathon shortly after graduating. As part of his training, he ended up running the White Rock 50k in Arkansas, where he still currently holds the course record. From there, his love of trail running was solidified.

“I felt like I really had a knack for those longer distances,” he says. “The challenges of the terrain, the distance, the hydration, the fueling, the equipment — I decided to take the leap and haven’t looked back since.” 

Now, Cole trains between 10 to 15 hours and consistently runs around 70 to 100 miles each week. “I look at it as almost a part-time job in terms of time commitment,” he says. To achieve this rigorous training schedule, he typically runs in both the morning and evenings — a routine he’s kept up for nearly seven years. 

And just as his school days on the cross country team naturally progressed into ultra-marathoning, the same can be said for his life as a snowshoe runner. “I wanted to still go out on the trails when we got tons of snow, and we have a local ski resort in the area,” Cole says. Just like that, another passion was born — and his hard work was rewarded this year with a spot on the National Snowshoe Running team. He’ll compete in the World Championships in February, with hopes to see snowshoe running become an official Olympic sport in the near future.

“Making the national team on the cusp of it becoming an Olympic sport is one of my proudest accomplishments,” he says.

Cole will also represent the United States at the World Trail Championships next summer — and he’ll be wearing FITS socks the whole time.

“I’ve been wearing FITS since 2014,” he says. “They’ve propelled me to all of my accomplishments in training and racing the last six to seven years.”

Noting the extreme mental challenge ultra-marathoning requires, Cole says he’s especially grateful that wearing FITS allows him to stay fully in the zone. “When I’m in the zone, I’m in a place where I know I’m running a good pace, so things are going according to plan,” he says. “The amount of blisters I’ve never seen because of wearing a FITS sock is absolutely incredible.”

Above all though, Cole appreciates FITS for allowing him to continue doing what he loves most: exploring the world on foot. “It’s not only about having the most reliable, best fitting sock out there — it’s about having a tool for exploration,” he says. “That’s something that I think the product and the company has really allowed me to achieve and that’s the core root of why I love to run. It’s about connecting with the natural world.”

Good luck in your upcoming races, Cole! We hope to see you compete on the Olympic stage soon.

Running your own marathon soon? Our running socks for men and women make the perfect addition to your marathon gear.


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.)


shop light hikers
The Light Hiker is perfect for everything from big adventures to everyday wear.
shop now

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.



shop now
Check out our best selling sock styles today! 
shop now