Carbon Fiber Insoles for Cross Country

Engineered For Endurance

Q: What if VKTRY Insoles don’t fit my cross country spikes or trainers?

Every pair comes with a 90-day money-back guarantee. If the fit, comfort, or performance isn’t right, we’ll exchange them for free (international customers cover postage). To get in contact, either chat with us by clicking on the question mark at the bottom right of the screen, call us by clicking on the phone at the top right of the screen, or email us at info@vktry.com.

Shop Performance Insoles

Long races demand efficiency and resilience. VKTRY Insoles provide the support and energy return that help you maintain rhythm, reduce strain, and stay strong through every mile.

Stride Efficiency

Cushioning &

Shock Absorption

Arch &
Heel Support

US & Canada	Length	Width
M: 1.5-2 F: 3.5-4	(in): 9.1 (cm): 23.1	(in): 2.56 (cm): 6.5
M: 2.5-3 F: 4.5-5	(in): 9.3 (cm): 23.7	(in): 2.56 (cm): 6.5
M: 3.5-4 F: 5.5-6	(in): 9.6 (cm): 24.4	(in): 2.6 (cm): 6.6
M: 4.5-5 F: 6.5-7	(in): 9.9 (cm): 25.1	(in): 2.6 (cm): 6.6
M: 5.5-6 F: 7.5-8	(in): 10.1 (cm): 25.7	(in): 2.72 (cm): 6.9
M: 6.5-7 F: 8.5-9	(in): 10.4 (cm): 26.4	(in): 2.72 (cm): 6.9
M: 7.5-8 F: 9.5-10	(in): 10.7 (cm): 27.3	(in): 2.83 (cm): 7.2
M: 8.5-9 F: 10.5-11	(in): 10.9 (cm): 27.6	(in): 2.99 (cm): 7.6
M: 9.5-10 F: 11.5-12	(in): 11.2 (cm): 28.4	(in): 2.95 (cm): 7.5
M: 10.5-11 F: 12.5-13	(in): 11.5 (cm): 29.2	(in): 3.07 (cm): 7.8
M: 11.5-12 F: 13.5-14	(in): 11.7 (cm): 29.8	(in): 3.11 (cm): 7.9
M: 12.5-13	(in): 12 (cm): 30.5	(in): 3.11 (cm): 7.9
M: 13.5-14	(in): 12.4 (cm): 31.5	(in): 3.31 (cm): 8.6
M: 14.5-15	(in): 12.5 (cm): 31.8	(in): 3.39 (cm): 8.6
M: 15.5-16	(in): 12.7 (cm): 32.3	(in): 3.54 (cm): 9
M: 16.5-17	(in): 13.2 (cm): 33.5	(in): 3.54 (cm): 9
M: 17.5-18	(in): 13.4 (cm): 34	(in): 3.74 (cm): 9.5

US & Canada	Length	Width
M: 3-3.5 F: 5-5.5	(in): 9.3 (cm): 23.7	(in): 2.56 (cm): 6.5
M: 4-4.5 F: 6-6.5	(in): 9.6 (cm): 24.4	(in): 2.6 (cm): 6.6
M: 5-5.5 F: 7-7.5	(in): 9.9 (cm): 25.1	(in): 2.6 (cm): 6.6
M: 6-6.5 F: 8-8.5	(in): 10.1 (cm): 25.7	(in): 2.72 (cm): 6.9
M: 7-7.5 F: 9-9.5	(in): 10.4 (cm): 26.4	(in): 2.72 (cm): 6.9
M: 8-8.5 F: 10-10.5	(in): 10.7 (cm): 27.3	(in): 2.83 (cm): 7.2
M: 9-9.5 F: 11-11.5	(in): 10.9 (cm): 27.6	(in): 2.99 (cm): 7.6
M: 10-10.5 F: 12-12.5	(in): 11.2 (cm): 28.4	(in): 2.95 (cm): 7.5
M: 11-11.5 F: 13-13.5	(in): 11.5 (cm): 29.2	(in): 3.07 (cm): 7.8
M: 12-12.5	(in): 11.7 (cm): 29.8	(in): 3.11 (cm): 7.9
M: 13-13.5	(in): 12 (cm): 30.5	(in): 3.11 (cm): 7.9
M: 14-14.5	(in): 12.4 (cm): 31.5	(in): 3.31 (cm): 8.6
M: 15-15.5	(in): 12.5 (cm): 31.8	(in): 3.39 (cm): 8.6
M: 16-16.5	(in): 12.7 (cm): 32.3	(in): 3.54 (cm): 9
M: 17-17.5	(in): 13.2 (cm): 33.5	(in): 3.54 (cm): 9

US & Canada	Length	Width
M: 4-4.5 F: 6-6.5	(in): 9.3 (cm): 23.7	(in): 2.56 (cm): 6.5
M: 5-5.5 F: 7-7.5	(in): 9.6 (cm): 24.4	(in): 2.6 (cm): 6.6
M: 6-6.5 F: 8-8.5	(in): 9.9 (cm): 25.1	(in): 2.6 (cm): 6.6
M: 7-7.5 F: 9-9.5	(in): 10.1 (cm): 25.7	(in): 2.72 (cm): 6.9
M: 8-8.5 F: 10-10.5	(in): 10.4 (cm): 26.4	(in): 2.72 (cm): 6.9
M: 9-9.5 F: 11-11.5	(in): 10.7 (cm): 27.3	(in): 2.83 (cm): 7.2
M: 10-10.5 F: 12-12.5	(in): 10.9 (cm): 27.6	(in): 2.99 (cm): 7.6
M: 11-11.5 F: 13-13.5	(in): 11.2 (cm): 28.4	(in): 2.95 (cm): 7.5
M: 12-12.5	(in): 11.5 (cm): 29.2	(in): 3.07 (cm): 7.8
M: 13-13.5	(in): 11.7 (cm): 29.8	(in): 3.11 (cm): 7.9
M: 14-14.5	(in): 12 (cm): 30.5	(in): 3.11 (cm): 7.9
M: 15-15.5	(in): 12.4 (cm): 31.5	(in): 3.39 (cm): 8.6

Why XC coaches love VKTRY

CUSTOMER REVIEWS

VKTRY for the whole family

Since I've been using VKTRY my ankle and heal pain has reduced tremendously. I've since gotten a pair for both my sons and both have had great feedback. My younger sons was starting to get shin ...

Since I've been using VKTRY my ankle and heal pain has reduced tremendously. I've since gotten a pair for both my sons and both have had great feedback. My younger sons was starting to get shin splints from his cross country season and they went away after using VKTRY

Mom of R. Verified Buyer

Shin Splints Gone!

My son is a cross country runner and has been dealing with very painful shin splints for the past 2 seasons. We have tried everything and it had gotten to the point where he was ready to quit ru...

My son is a cross country runner and has been dealing with very painful shin splints for the past 2 seasons. We have tried everything and it had gotten to the point where he was ready to quit running. On a whim, knowing they had a great return policy, I ordered a pair of gold VKTRY inserts. They made an immediate difference! Shin splints are all but gone!

Rebecca S. Verified Buyer

Running injury FREE!

I love these insoles! I tend to get achey knees and ITBS, but not with these! Never doing distance running without these again.

Bri M. Verified Buyer

These insoles are AMAZING!!

These insoles are amazing! I have to admit I was skeptical about running faster, but on average I am running about 50 seconds faster per mile. My body also feels better after I am done running ....

These insoles are amazing! I have to admit I was skeptical about running faster, but on average I am running about 50 seconds faster per mile. My body also feels better after I am done running . I am a forever customer!

Greg N. Verified Buyer

Perfect running insole

I had gotten a pretty nasty case of IT Band Syndrome and never had my feet looked at. Turns out I supinate and nobody really makes running shoes for us (wide feet too) so I needed insoles. Got a...

I had gotten a pretty nasty case of IT Band Syndrome and never had my feet looked at. Turns out I supinate and nobody really makes running shoes for us (wide feet too) so I needed insoles. Got a pair of custom VK’s and haven’t looked back. Im not the greatest runner but I’ll log about 35-50 miles a week depending on my other cross training and they have been great. I don’t have much knee pain and just did a 9 hour trail race with zero issues. No foot pain, no back pain. Honestly I felt great. Since getting the VK’s I have seen my power output average increase by nearly 100 Watts (yes I collect the data on every run, tested them on the same route, same shoes, similar weather, same pace) and I definitely feel more efficient when running . I would recommend these to anyone especially us novice runners in our 40s trying to stay injury free

Michael K. Verified Buyer

Loving the Gold VKs

Purchased the Gold VKs for long- distance running . I went through the short break-in period and then immediately ran a half-marathon. The race went great, I set a new half-marathon PR (took a f...

Purchased the Gold VKs for long- distance running . I went through the short break-in period and then immediately ran a half-marathon. The race went great, I set a new half-marathon PR (took a full 30 seconds off my average pace). I had no fatigue or soreness in my feet or legs. Instead, I still had energy to spare! Looking forward to my next long race.

Matthew D. Verified Buyer

My daughter loves these!

I bought a pair for my daughter who plays volleyball and basketball and she just made the cross country team. She’s been using them in her running shoes for now and absolutely loves them! She ca...

I bought a pair for my daughter who plays volleyball and basketball and she just made the cross country team. She’s been using them in her running shoes for now and absolutely loves them! She can’t wait to start volleyball and basketball using her Gold VK Insoles/Pro Level 2! We are so pleased with the comfort and feel that we ordered her a pair for soccer and track too!

Jenna Verified Buyer

The insoles are wonderful!!!

The insoles are wonderful!!! I have seen improvement in my running performance almost immediately.

Marcus K. Verified Buyer

I have not experienced any foot and ankle soreness

I started using VKTRY Gold for running for two plus years. I have not experienced any foot and ankle soreness like I used to with other insoles. I still change out my shoes after 6 months or aft...

I started using VKTRY Gold for running for two plus years. I have not experienced any foot and ankle soreness like I used to with other insoles. I still change out my shoes after 6 months or after 500 miles, whichever comes first. Thank you.

Cristino M. Verified Buyer

These made my old running shoes feel new

These were a gift to a family member who is an avid long distance runner. He broke them in on an old pair of runners that he had stopped using, and his reply was "these made my old running shoes...

These were a gift to a family member who is an avid long distance runner. He broke them in on an old pair of runners that he had stopped using, and his reply was "these made my old running shoes feel new again". Then a bit later he used them on a run and said they felt like springs in his shoes. I had the same experience in my own cross-trainers - running up stairs felt ... bouncy. It definitely helps with impact on landing, and the nuanced bounce makes each step just that much easier. I was skeptical, but am a convert now that I've tried them for myself.

Gordon M. Verified Buyer

Customer testimonials reflect individual experiences and opinions. Results may vary.

With over 850,000 pairs sold, see why athletes love VKTRY insoles.

Read More Reviews Shop Performance Insoles

FAQ

How do VKs benefit cross country runners?

Cross country athletes log among the highest training mileages of any high school or collegiate sport, often on varied terrain that creates inconsistent impact loading. VKs are designed to help address both performance and injury-related concerns: energy return may help reduce the metabolic cost of each stride over long distances, while shock absorption can help reduce the impact forces associated with shin splints, stress fractures, and IT band syndrome over high-mileage training weeks. Individual results will vary.

Are VKTRY Insoles proven to improve explosiveness, and how can that help in cross country?

Yes. Independent third-party studies have shown that athletes wearing VKTRY Insoles increased their explosiveness by an average of 9.3%. For cross country runners, this translates to faster starts, stronger surges during the race, and a more efficient stride that conserves energy for the final kick.

How do VKs help with shin splints in cross country athletes?

Shin splints are among the most common overuse injuries in cross country. VKTRY's shock absorption is designed to help reduce peak tibial impact load, and the stabilization component may also help reduce the pronation-driven shin loading that high-mileage runners can experience in wet or uneven trail conditions. VKs are not a medical device. Consult your physician or athletic trainer for any active shin splint symptoms.

Are VKTRY Insoles comfortable for long-distance races?

Absolutely. While the base is made from lightweight carbon fiber, the top layer is cushioned with soft EVA foam for comfort over miles of racing and training. Like any high-performance gear, they require a short break-in period—usually just a few easy runs—before they feel fully natural. Instructions for the break-in process are included in your order.

Do VKTRY Insoles fit in cross country spikes?

Yes. VKTRY offers insoles designed specifically for spike footwear. XC spikes are slim-fitting; remove the factory spike bed before inserting VKs. For athletes alternating between training flats and XC spikes, purchasing two pairs — one per shoe type — is common practice.

How do VKTRY Insoles work for cross country runners?

VKTRY Insoles feature a full-length carbon fiber baseplate customized to your weight and sport. When you run, your foot generates energy with each stride. Standard foam or plastic insoles waste that energy, but VKTRY captures and returns it—like a spring or diving board—boosting propulsion. This extra energy return helps maintain pace, improves running economy, and gives you more power late in the race when it matters most.

Are VKs legal for sanctioned cross country competition?

Yes. Orthotic insoles are unrestricted under USATF, NCAA, and NFHS cross country rules. No restriction applies to carbon fiber insoles in any running competition.

What if VKTRY Insoles don’t fit my cross country spikes or trainers?

Every pair comes with a 90-day money-back guarantee. If the fit, comfort, or performance isn’t right, we’ll exchange them for free (international customers cover postage). To get in contact, either chat with us by clicking on the question mark at the bottom right of the screen, call us by clicking on the phone at the top right of the screen, or email us at info@vktry.com.