Bold, innovative & breaking records: The creation of the Carbon X

On May 4th, one of HOKA’s most innovative shoes was unveiled in a way that challenged limits. The Carbon X was showcased by HOKA athletes from around the world in attempt to conquer a 100K course in Folsom, CA. The goal was simple — to break a World Record. After nearly five hours of running at a 5:48 per mile pace, Jim Walmsley did just that, walking away with the World Record for the 50 mile distance en route to finishing the 100K.

After years of development by the HOKA Design, Product and Innovation teams, the Carbon X had finally made its debut. We sat down with Director of Design Dr. Matthew Head, and Senior Product Innovation Manager Thibaut Poupard to learn more about how the Carbon X came to life and how this ultra running shoe can help inspire athletes of all types to reach for their personal best.

matt-and-thibautHOKA: What makes this the perfect shoe for breaking the 100K world record?

HEAD: No shoe is perfect for breaking records or can guarantee that! It comes down to a huge combination of factors that aren’t under our control: the wearer, their training, conditions etc.

This shoe has, however, been carefully engineered for moving fast over long distances; perfect for the 100k attempt. It has that classic HOKA cushioning for feeling fresh when the miles add up. It’s also inherently stable, so as the run wears on and you fatigue you have to worry less about your form. Then lastly the Carbon Fiber plate ensures the Carbon X has our best execution of the rocker yet, meaning you can move smoothly through the gait cycle whatever the mile. The result is an ultra running shoe that makes you feel like you want to move fast when you step in and fast as your run progresses.

jim-pcxHOKA: What differentiates this ultra running shoe from our previous carbon plate model, the EVO Carbon Rocket?

POUPARD: The EVO Carbon Rocket was designed to target shorter distances than the Carbon X. The concepts and construction are similar, but there are clear differences. The Carbon X has a greater amount of cushioning, and a more pronounced heel to toe drop— 5mm vs. 1mm. Ultimately, the Carbon X is a shoe designed to empower athletes of all levels to perform at their best, enabling them to roll smoothly and efficiently.


HOKA: What aspect of this design are you most proud of?

HEAD: I’m proud of the whole package and what we’ve done as a team. It’s a classic HOKA product, made for everyone; we focused on the problem of moving fast over long distances and this is the result. If I had to pick something, the reaction people give when putting the shoe on for the first time and going for a jog has been really satisfying so far.

HOKA: Why will original HOKA fans loves this shoe?

HEAD: This is unmistakably a HOKA product — a great rocker, endless cushioning and inherent stability, all in a fast package. So, for a HOKA fan it’s just another extension of our experience and another difficult choice to make!


HOKA: Why is now the right time for HOKA to release the Carbon X?

POUPARD: After years of perfecting the Carbon X, it finally felt ready. In addition, the goals of the shoe aligned with the aspirations of the HOKA brand and our athletes. By setting the 100K Record challenge with Project Carbon X, we could inspire runners to push their own limits in whatever distance they pursue. It started with trail running. We are now we are inspiring people in the same way on the road. It is in our DNA.

HOKA: What testing went into perfecting this shoe? Who tested it, and in what conditions? How did that feedback help develop the Carbon X as we see it?

POUPARD: The Carbon X has been extensively tested by HOKA Athletes, everyday runners and in labs to ensure it reaches the standard HOKA has set with previous styles. We’ve produced many iterations over many years and tested them all to ensure that we’ve delivered the right balance of attributes.

HOKA: Who was the Carbon X made for?

POUPARD: The Carbon X was made for all runners who are willing to make their heart beat faster in the pursuit of speed!

Shop the shoe that HOKA Athlete Jim Walmsley broke the 50 Mile World Record in here.


Concrete to Cacti: Latoya Shauntay Snell’s first 100K

Almost sixteen months ago, I experienced a tumultuous low in my life.

I had a miscarriage with twins, contemplated quitting running and told a few of my loved ones that this would be my last season. I’d break the news to my once intimate following on Running Fat Chef that I was leaving this sport forever. However, those plans were disrupted by a heckling spectator at the 2017 NYC Marathon.

Although the brief altercation of being fat shamed was terrible, it was a life altering experience that forced me out of my self-defeatist comfort zone. Sharing this terrible experience made me viral overnight to a community who didn’t know I existed. Before I knew it, I became an accidental activist for the body positivity moment and one of the many voices for the back of the pack runners — I never looked back.

Before this series of events, I had read a copy of my ultrarunning buddy’s book where she talked about her first 100K race and proclaimed it was a “party in the desert.” Despite loving her story, I came to my own definition of why people like her did it: insanity. I thought any person who was willing to sign up for a 100K has to be a borderline idiot.

Post NYC, my buddy jokingly pestered me about the 100K she had completed, the Javelina Jundred 100K. It is a race in Fountain Hills, Arizona with a multi-loop course and a generous 29-hour cut off designed to prevent delirious participants from feeling isolated.

This race started to sound desirable, and less than a few months later, I embarked on this crazy adventure. I used a regiment crafted by HOKA Athlete Megan Roche and started training in April.

When I arrived in Arizona, visiting the expo was electrifying. Unlike the road races that I’m used to, the Javelina Jundred expo was intimate but buzzing. I was greeted by five elite athletes, all of who participated in the festivities through running or volunteering on the course.


When race day arrived, I watched the 100 milers take off. They looked like moving Christmas lights scurrying around McDowell Mountain Regional Park. Before I knew it, I was at that same start line ready to take on 100K.

I’m used to watching people pass me on the course, but being a back-of-the-pack runner has its pressures. To some, if you’re not running fast enough, you are a glorified walker. At 5’3 and with a 240-pound muscular frame, the fact that I identify as a runner is comical to some. People like me are suggested to lose weight, scolded to move faster and accused of eating too much or lacking discipline. None of these factors stop me from running — in fact, they fuel me.

Such statements convinced me to use my first 22-mile loop as an ode to some of the worst things that I had read or heard directed to friends, family members, my social media followers and at times, myself. In so many ways, I thought that anger would push me through.

This perspective changed when I linked up with a fellow back-of-the-pack ultrarunner named Lisa. She showed me a personal note that she wrote to propel her throughout the course, which included a reminder to smile. Although Lisa didn’t know it, our conversations and breaks of silence replaced my angry intentions. Plenty of endurance athletes use these events to confront their personal demons. However, life handed me a smoother alternative option when I met Lisa.

My first loop gave me many first-time experiences. Ten minutes away from Coyote Camp, I saw what appeared to be a dog dart off in the distance. It was actually a coyote. Surprisingly, I wasn’t scared but fascinated. Reaching our first aid station, Lisa and I indulged in a shot of Fireball, a random shot of whiskey and a cup of IPA with HOKA Athlete Tim Tollefson. We saw runners who dressed in costumes prancing through the desert. Pumped with energy, we iced our bodies in preparation for the rapidly growing Arizona heat.


Lisa and I parted, and the sun whipped my body into submission. The heat was growing more oppressive by the moment. Suddenly, it dawned on me that I had another 39 miles to go. I hit a wall, and my mind danced with the idea of giving up. I thought about the excuses that I could tell my friends and family members, but my heart didn’t feel right about it. When I left Rattlesnake Ranch, my silence became a burden, and I opted to play music from my phone.

Notifications started rushing in on my phone. I had decided to dedicate my second loop to slow runners and tears streamed down my face as I allowed hundreds of messages to fuel me. I shuffled my blistered feet through the sunset until I hit Jackass Junction.

Clearly “the party in the desert” wasn’t a joke; Jackass Junction could be heard from a quarter mile away. The lights were shining and people were dancing inside the tent. I sat down, and two volunteers came to my side offering two cheeseburgers and two cups of coffee.

A mile after leaving Jackass Junction, two hot dogs rushed past me, one of which was HOKA Athlete Tim Tollefson. He asked how I was feeling, and I assured him that I was doing okay. I trekked on through the night.

The stars spoke to me, and the shift in the temperature brought me to a calm. The loop-style course served me well as runners moving in both directions exchanged supportive messages. The ultra community is unique in that way. For the first time, I felt like I truly belonged with other runners.

Slightly after midnight, I finished loop two. My feet were inflamed, and a few suggested that I take a nap before heading back out to the course. I had hoped to finish the course before the 24-hour mark, but at that point, I just wanted to finish and push my body further than I ever had.

After a two-hour break, I received my final lap bracelet and headed back out on the course. My headlamp died. In complete darkness, I used my phone light to navigate through the trails. I told myself to remain calm.

Finally, I was greeted by the sunrise. The heat started to pick up, and I wanted this race to be over. I called my husband for words of encouragement. He reminded me that my last loop was for me — the woman who dropped out of high school because of seven missing gym credits.

As close as I was to the finish line, it still felt so far. After hearing a few conversations, I realized that I was the last 100K participant on the course. I chuckled to myself. “I’m going to be DFL.”


With 2.75 miles remaining, I felt like I was walking on nails. I had an hour and a half left to make the cutoff, and I refused to be pulled off the course. I dug deep, pushed past the sound of my grunts and speed walked my way through.

I could hear music playing, and I thought it was my imagination playing tricks on me. As I arrived at Javelina Jeadquarters, the banners were still up, and I was amazed at how many people were still there to cheer me in. I was overwhelmed with emotions. Nobody cared that I was a plus-size athlete or that I was the last runner on the course. I was a 100K finisher.


I love the sense of inclusion I felt in a sport where you don’t typically see bodies like mine. Even though a 100K still makes me nervous, I’m looking forward to a new goal: 100 miles. Perhaps being a “borderline” idiot isn’t such a bad thing after all.

Shop the shoe Latoya conquered her first 100K in, the Speedgoat 2.