It's okay to ask questions. That’s what we’re here for. Below is a list of the most commonly asked questions and answers. If you can't find what you’re looking for here or on the relevant pages, feel free to contact us.
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Please use the ShoeFitr application located next to the sizing selection of the product you are considering in order to get an accurate estimate. Remember to fit for the largest dimension of your largest foot, not simply length.
Please check the sizing chart on the bottom of the Choosing A Shoe page.
While comfort is key, there are additional factors to keep in mind when fitting Newton Running shoes:
The ball of your foot should be positioned over the center of the external lugs on the bottom of the shoe. Learn more about how to your running shoes should fit.
Universal posting is the denser, more-supportive midsole foam located along the medial (inside) and lateral (outside) edges of our shoes. This runs from just forward of the heel to the ball of the foot, and reduces pronation and supination. Pronation/supination is the foot's propensity to roll in or out as you load your foot.
Because of its posting on both the medial and lateral sides, Universal posting also accommodates a neutral gait type.
Yes. Newton Running shoes work well with most orthotics, although we strongly recommend you use only flexible orthotics that balance your midfoot.
Active Imprints, available from the Newton Running Lab, are the running orthotics of choice and are used by dozens of elite and World Champion athletes. To order your custom orthotics drop in or call the Newton Running Lab at:
Newton Running Lab
1300 Walnut St. Suite 20
Boulder, CO 80302
Monday - Friday 10a-6p
Yes. The Guidance Trainer is available in both medium and 2E widths. The Performance line (M/W) is a medium width. In addition, all our performance shoes have flexible panels on either side of the ball of the foot. These panels stretch to accommodate multiple widths and allow your foot to move more naturally.
It is unlikely you are too heavy for Newton Running Shoes. The technology used in all Newton Running shoes works like a trampoline – when your foot strikes the ground, the raised lugs on the outsole compress through a stretch membrane into a hollow chamber in the midsole. Since when were you too heavy for a trampoline?
If you are currently running with a heavier heel strike, we encourage you to modify your gait to a more natural running stride. In this case, you may find our Guidance Trainers (M/W) the best in terms of fit and function.
Consider sizing for the largest foot. If you have a very large discrepancy and can’t run in the larger shoes on your smaller foot, then you may need to buy two pairs of shoes.
Newton Running shoes wear like car tires: from the outside in. Like wear on car tires, shoe wear is a result of friction: the shoe sliding along the ground during your gait cycle. This is like a car skidding to a halt or spinning its wheels taking off from a stoplight. When you run, this may be so slight you can’t hear it, but the wear on your shoes shows where you are creating friction. If the heel of your shoe shows wear, you are braking on the foot strike. This is inefficient and you should work on your form. Make sure you maintain good posture and position (lean from your ankle; don’t bend at your waist).
As the wear on your lugs accumulates, you will see that the front third wears significantly more than the rear two-thirds. This is totally normal and to be anticipated. Ideally, the lugs will wear evenly, from one side to the other.
If you have excessive wear on the front of the shoe (under your toes), you are toeing off too hard at the end of the foot strike and pushing harder off the ground than need be. This is also inefficient and indicates that you are not utilizing the benefits of the shoe’s midfoot technology.
It is not uncommon that some runners will burn off the outside (lateral) lug. This doesn’t mean you are supinating – in fact, most runners with this wear pattern are pronating. It indicates you are hitting the ground to the outside of your foot with a slight stabbing motion. To correct this, try to bring your foot back toward you as it strikes the ground.
Retire your shoes when any part of the shoe is worn down unevenly close to the surrounding material. An example would be one side of the lugs under the ball of the foot is worn down level to the outer part of the outsole. If you wear the shoe evenly, it will continue to perform even if you wear down all of the rubber lugs. This is because the Action/ReactionTM technology continues to work regardless of wear.
The number of miles you can get from a pair of Newton Running shoes depends on many factors – the most important of which is the efficiency of your gait. In most cases, you will get the same type of mileage out of your Newton Running shoes that you have had in traditional running shoes.
If you don't track your mileage, you can base your need for new Newton Running shoes on how they feel – when you feel like your Newton shoes are no longer giving you the same "pop" they once were, it's time for a replacement.
If this is your first pair of Newton Running shoes, spend time to adapt. You may need to strengthen muscles and tendons to adjust to any changes in your running form. This could take some time, so be patient!
As you are adjusting to your Newton Running shoes, you can rotate with your traditional running shoes so that you maintain mileage and fitness. Use your Newton Running shoes only for 10-15 minutes at a time. You will find that the more you adjust to the midfoot foot strike and strengthen your lower legs and feet, the more inclined you'll be to start running longer in your Newton Running shoes.
There are several reasons your calves may be sore, the most common of which is running too much, too fast, too soon and not allowing time for your body to recover and strengthen. A midfoot foot strike engages the calf, Achilles tendon and plantar fascia (connective tissue behind your leg and under your foot). If you are adjusting too fast, pushing off the ground too hard, not allowing your heel to settle fully to the ground or trying to reach the ground by pointing your toe down at foot strike, you may experience calf tenderness. Take time to learn proper running form and adjust slowly.
Adjusting to your Newton Running shoes will depend on many factors. If you are a very efficient runner with excellent form, the transition may be very short. If you have embedded heel-striking habits and/or have been wearing a large, built up shoe, your transition can take much longer. Don’t be concerned if it seems to be taking forever; learning to modify your foot strike takes time, but it is worth the effort!
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Absolutely! Many distance athletes wear Newton Running shoes, including champion athletes like Pam Reid (winner of the 135-mile Badwater Ultramarathon) and multiple World Champion Ironman triathlete Craig Alexander.
Newton Running shoes are designed to be your full-time training and racing shoes. While you can switch back and forth, we find that the change in shoe geometry never allows the athlete's body to adapt to either foot strike sufficiently.
Not necessarily. Many people train and/or race in either shoe. Highly efficient runners often choose to race and train in their Lightweight Trainers.
Walking around your house with bare feet is a good start. Once you are comfortable walking around the house in bare feet, start walking around the yard, and then try a short jog around a grass or synthetic track. Make sure you do this gradually.
Calf raises, single-leg squats, balance drills with bare feet and gym work will all help strengthen and condition your lower legs and feet.
Efficient downhill running form requires strong quadriceps (thigh) development. Depending on the steepness of the hill and your speed, you can control your speed through your upper body by leaning back. A confident, rapid leg turnover will allow you to stay on the midfoot while continuing to accelerate on the downhill. Keep your feet level to the ground and do not point your toes down and stab the ground.
Newton Running Cofounder Danny Abshire’s book Natural Running is an outstanding resource for people interested in learning more about running efficiency and form. Other resources include:
The MV2 is a "zero-drop" shoe engineered for athletes who practice Newton running form. The MV2 is unique in that it is built on a level profile: There is no drop from the heel to the midfoot, hence the term “zero drop.”
It is not unusual for runners who are transitioning to a zero-drop shoe like The MV2 to experience tightness in their calf muscles and Achilles tendons, as well as their feet. This can occur because the muscles and tendons are further elongated when running in a zero-drop shoe, compared to a conventional shoe with a lifted heel.
Adapting to a zero-drop shoe and a Newton running style takes time, and the process is unique for each athlete. It is always better to make this transition gradually. With this in mind, we enclose a removable 3 mm heel lift with each pair of our MV2 models in the event that you wish to transition with incremental steps. This is particularly recommended if you are transitioning from a shoe with a high heel-toe drop.
Men’s size 9 = 5.8oz; Women’s size 7 = 5.2oz
Most people go up a full size from their current Newton Running shoe size if they are looking for a “comfort fit.” For a tighter racing fit, stay in your current Newton Running shoe size.
Zero drop means the shoe is built on a level platform and there is no difference between the heel height and the midfoot height.
Most running shoes (racing and training) have a heel-toe drop that ranges from 3 mm to 15 mm. Consequently, many people are not accustomed to a zero-drop (level-profile) shoe, and our lower leg muscles and tendons need time to adapt. This adaptation typically takes 12 weeks, and for some people it can take up to a year. To facilitate this adaptation, we enclose a 3 mm heel lift that can help reduce the stress to the lower leg and foot.
GRADUALLY. Listen to your body. Use the removable heel lift and start with very short runs – less than a mile. Focus on form, not speed or distance. Add mileage in very small, incremental steps. If you experience any soreness, rest and dial back your mileage, adding mileage only when you can do a short run and not experience soreness. Remember: the transition is relative to your body, so don’t measure your adaptation against a friend’s or a hypothetical time frame. Listen to your body and go slow. It is worth the investment.
The MV2 provides much greater longevity than typical racing flats if you are running efficiently. As with all of our shoes, the MV2 wears like car tires – you will begin to see wear externally on the lugs almost immediately. It’s time for a new pair when you feel like your MV2s are no longer giving you the same "pop" they once were.
The membrane is lightweight and tuned to react faster, promoting higher cadence. The lower-profile design includes five articulating lugs.
Although designed to be a fast-paced running shoe, runners of all abilities who are committed to adjusting to Newton running can benefit from this low-profile design. The MV2 can also be used for walking, weight training and other gym activities. It is not designed for longer distances.
This shoe is engineered as a racing flat for faster, shorter distances. Experienced, efficient natural form runners can run 5k to half marathon distances. For longer distances we would recommend our other Performance shoes.
Typically no. However, some highly efficient, well-adapted natural runners may choose to wear the MV2 for longer distances. Most people will prefer models from our Performance line for the marathon.
Yes! Like all of our other shoes, the MV2 is designed to encourage Newton running and utilizes our Action/ReactionTM technology.
The shoes are nimble and offer great traction. They can be used on paths and dirt roads, but MV2 was not designed for rugged terrain. The uppers are not designed to provide lateral support and there is no protectionfor hitting hard objects like rocks and roots.
No. The MV2 is ideal for shorter training runs, tempo runs and track workouts, as well as just walking or the gym.
You can purchase the shoes in many ways, see our Ordering page for more details.
After the order has been shipped, you will receive an email notification to the email address you used for placing the order. The email notification will include your UPS tracking number and a link to the UPS tracking website.
Please see our Exchange Information page for instructions if you receive your shoes through newtonrunning.com and the fit is not correct. You must receive a return authorization in order to exchange the shoes. If you purchased the shoes through one of our retailers, please take the shoes directly back to the retailer to process your exchange.
Our retail and international distribution partners can be found on the Retail Locator page.
We offer all our customers the same 30-day, no-questions-asked return and/or exchange on their shoe purchases.
Please see the Return Policy for instructions if you want to return your shoes. You must receive a return authorization in order to return the shoes.
Consider becoming an Affiliate to help support the Newton Running brand. Learn how on the Become an Affiliate page on our website.
To enquire about becoming a Newton Running distributor, send us an email by selecting "Sales and Distribution outside the US" on the Contact Us page of our website.
To enquire about becoming a US or Canadian Newton Running retail partner, send us an email by selecting "Becoming a US Retailer" on the Contact Us page.
If you are a retailer in a country outside of the US/Canada and want to sell Newton Running Shoes, please contact your distributor.
The Newton Running Human Rights Production Standards reflect the relevant covenants of the International Labor Organization, input from human rights organizations and academia, and our own experience. In developing this policy, we sought to use standards that are fair, appropriate to diverse cultures and that encourage workers to take pride in their work.
Newton Running will seek business partners who do not discriminate in hiring and employment practices, and who make decisions about hiring, salary, benefits, training opportunities, work assignments, advancement, discipline, termination and retirement solely on the basis of a person disability to do the job.
Workers shall not be required to work more than 60 hours per week, including overtime, except in extraordinary circumstances. In countries where the maximum work week is less, such local standard shall apply. Workers shall be entitled to at least one day off in every seven-day period. Adherence to this Newton Running Standard is a sign that factory management efficiently organizes its production planning and workflow.
No Forced Or Compulsory Labor
No factory making Newton Running products shall use forced or other compulsory labor, including labor that is required as a means of political coercion or as punishment for holding or for peacefully expressing political views. Employers will maintain sufficient hiring and employment records to demonstrate and verify compliance with this provision. Newton Running will not purchase materials produced by any form of compulsory labor and will terminate business relationships with any sources found to utilize such labor.
Fair Wages And Benefits
Newton Running will seek business partners committed to the betterment of wage and benefit levels to the extent appropriate in light of national practices and conditions. Newton Running will not select business partners who pay less than the minimum wage required by applicable law or who pay less than the prevailing local industry wage.
No Child Labor
Newton Running seeks business partners who do not use child labor. The term "child" refers to a person who is younger than 15, or younger than the age for completing compulsory education in the country of manufacture, whichever is higher.
Freedom Of Association
Newton Running will seek business partners that share its commitment to the right of employees to establish and join organizations of their own choosing. Newton Running recognizes and respects the right of all employees to organize and bargain collectively.
Newton Running will seek business partners that treat their employees with respect and dignity. No worker will be subject to any physical, sexual, psychological, or verbal harassment or abuse.
Safe And Healthy Work Environment
Newton Running will seek business partners that strive to assure employees a safe and healthy workplace and that do not expose workers to hazardous conditions.
Factories must publicize and enforce a non-retaliation policy that permits factory workers to express their concerns about workplace conditions without fear of retribution or losing their jobs. Workers should be able to speak without fear directly to factory management or Newton Running representatives.
Newton Running will work with our partner suppliers to promote positive environmental awareness and responsible practices.
Newton Running cofounders Jerry Lee and Danny Abshire created the company with the desire to give back and improve our world. Visit our Social Responsibility page.
We're on the road all the time! Come see us at a running or triathlon expo, or at an educational symposium.
Go to our Contact Us page for information on how to call or email us.
Yes! Newton Running’s pro-team includes many world champions, ultramarathoners and triathletes. Visit our Athletes page to learn more.
We do have a wear test program, and inquiries can be sent to us through the Contact Us page of our website.
In the case that job postings become available with Newton Running, you will see them listed in the Careers section of our website.