Corefit Plantar Inserts
Rigid Heat Moldable Inserts

Podiatrist Approved Since 1932

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Simply Dip in Hot Water. Custom Fit in Seconds!

Rigid 3/4 Length Plantar Fasciitis & High Arch Inserts

"I've used your heat moldable orthotic inserts for 25 years of practice. They're durable, relatively inexpensive and have been an excellent over-the-counter supportive device."


Dr. Michael O'Toole, Podiatrist

"I ordered these because of intense pains in my feet and up into my calves. Easy to custom shape in hot water, and they have made a remarkable improvement in a short period of time. Every day is a little bit better, and looking forward to tomorrow, which is something I would not have said a month ago. "




Bruce B, Kissimmee, FL


 Custom Plantar Fasciitis Inserts







Most think of custom insoles as simple arch, heel or plantar fasciitis supports. However, they're much more. Custom insoles for plantar fasciitis or heel spur are orthopedic devices made to treat plantar fasciitis or adjust abnormal foot motion; they provide foot support, stability and control. Custom orthotics are designed to increase balance, absorb shock and relieve pressure on uncomfortable or sore spots of the foot. Corefit® Custom Insoles address your individual foots' specific needs. The good news is, our heat moldable custom insoles are only 59.99 a pair! It's important to remember that your feet are the foundation of your entire body. How your feet perform can affect how your entire body feels and functions. The stability and efficiency of the foot and ankle promote better foot health and overall body function.

Many of history's revolutionary products and materials were discovered by accident. In 1932, founder J.D. Zinke manufactured custom shoes for a discriminating clientele in the same way custom footware was made in Germany: with individually contoured inserts formed to perfectly fit an individual's unique foot. They were unlike the flat insoled factory made shoes which were common at the time. This individualized approach resulted in a shoe which made its wearer feel as though they were walking on soft earth instead of hard pavement. Mr. Zinke then thought, "Why not design custom orthotics which can be inserted into a standard shoe that gives its wearer this same "custom made" experience? Hence, a revolutionary discovery: not only did his researchers design and develop our custom orthotics for plantar fasciitis and high arch pain; his creation also turned out to be revolutionary custom insoles for plantar fasciitis, much unlike today's common "arch support".

Low Cost Plantar Fasciitis Inserts

Not Gel. Not Foam. Just Effective.®


Corefit® Heat Moldable Plantar Fasciitis Inserts have been hand molded and finished by North American craftspersons since 1932. As shown in our vintage circa 1946 ad (above) our heat moldable custom insoles support the weight bearing areas of the foot by firmly cradling the heel and supporting both the longitudinal and metatarsal arches. Our custom orthotics also provide solid plantar fasciitis comfort while at the same time relieving numerous foot disorders like heel spur & plantar fasciitis; they also have proven efficacy with most athletic applications. When inserted into a shoe, it is a superior support device, providing more comfort than many others on the market which sell for multiples above our price of $59.99 Corefit® Heat Moldable Plantar Fasciitis Inserts have evolved from an affordable, customizable foot support device designed specifically for podiatrists and physicians, into a custom moldable insole which is now available to you. Corefit® Inserts are a heat moldable solution designed & developed with a custom fit in mind; a conscious commitment to providing a highly effective, affordable foot care product. This focus on quality and affordability has been at the center of our business model since 1932.


 Fasciitis Planter



Each pair of our Corefit® Custom Inserts is handcrafted entirely in the USA.

Plantar fasciitis, also known as plantar fasciosis or jogger's heel, is a disorder that results in pain in the heel and bottom of the foot. The pain is usually most severe with the first steps of the day or following a period of rest. Pain is also frequently brought on by bending the foot and toes up towards the shin and may be worsened by a tight Achilles tendon. Identified risk factors for plantar fasciitis include excessive running, standing on hard surfaces for prolonged periods of time, high arches of the feet, the presence of a leg length inequality, and flat feet. The causes of plantar fasciitis are not entirely clear. Risk factors include overuse such as from long periods of standing, an increase in physical exercise, and obesity. It is also associated with the inward rolling of the foot and a lifestyle that involves very little exercise. While heel spurs are frequently found it is unclear if they have a role in causing the disease. Plantar fasciitis is a disorder of the ligament on the bone characterized by micro tears, collagen breakdown, and scarring. Most cases of plantar fasciitis are resolved with time and treatment. Usually for the first few weeks people are advised to rest, change their activities, take pain medications, and stretch. If this is not sufficient, physiotherapy, orthotics, splinting, or steroid injections may be options. Corefit Heat Moldable Orthotics assist in this regard. Between 4% and 7% of people have heel pain at any given time and about 80% of these cases are due to plantar fasciitis. Additionally, approximately 10% of people have this disorder at some point during their life and It becomes more common with age. It is unclear if one sex is more affected than the other.

We bridge the gap between custom orthotics and flimsy store bought rubber, gel and foam inserts. Most mass produced inserts and inserts are fabricated from simple cellular sponge and/or foam rubber materials. These inserts may provide some shock absorption, but minimal (if any) therapeutic control and support. Our pre-molded inserts are handcrafted in the USA and can be personalized to fit any individuals' foot in just seconds by simply dipping them in hot water and custom fitting to the foot. It's that simple!

The foot is held in a natural position to cradle heel, arch, instep and metatarsal joints. Our insole helps prevent heel roll, and provides better posture while providing better weight distribution & plantar fasciitis relief. As a result, Corefit® inserts helps control abnormal foot motion, especially excessive pronation. This motion, over extended periods, can lead to the development of conditions which include Achilles tendinitis, heel spurs, plantar fasciitis (heel and arch pain), shin splints and lower back pain. Our heat moldable inserts are superior to inserts which are pre molded and mass produced by size only.


Corefit® Heat Moldable Inserts provide firm, effective foot comfort by simplifying the custom fitting process:

Immerse our plantar inserts in boiling water for 20 seconds (Never place inserts inside a microwave)
Remove from water with tongs, grasping the front of insole only. Allow to cool until comfortable to the touch. (Approximately 15-20 seconds) If inserts become misshapen, simply re-heat them. They will return to their original shape!
Place the device in position beneath the foot, then using your fingers and the heel of your hand, mold the insole to the contours of the patients' foot, paying particular attention to the longitudinal and metatarsal arch areas.
When the insole has cooled to room temperature, it is then ready to be placed in your shoe and worn.
If the device becomes uncomfortable, dip only the troublesome portion in boiling water and repeat manipulation by hand.
When reheated, your custom insole will return to its original shape and can be remolded.


Calorthotic.com, Orthopedic Appliances, Burbank, CA