The best insole for plantar fasciitis should provide an appropriate balance of arch support, heel cushioning and stability while fitting comfortably inside your footwear.

Some people mainly need additional shock absorption beneath the heel. Others may benefit from a more structured orthotic insole that supports the arch and helps manage the way pressure is distributed through the foot.

There is no single insole that is best for everyone. The right choice depends on your symptoms, foot shape, footwear, activity levels and whether biomechanical factors such as overpronation are contributing to the problem.

Insoles are generally most useful as part of a broader management plan that may also include supportive footwear, stretching, activity modification and professional advice where required. NHS guidance identifies insoles, suitable footwear and night splints among the options a podiatrist may recommend for persistent plantar fasciitis.

Quick Answer

For plantar fasciitis, look for an insole that provides comfortable arch support, cushioning beneath the heel and a secure fit inside your shoes. A cushioning insole may be suitable when impact and pressure are the main concerns, while a structured orthotic may be more appropriate when foot posture or excessive movement contributes to the symptoms.

What Should A Plantar Fasciitis Insole Provide?

A suitable insole should help make walking and standing more comfortable without creating excessive pressure elsewhere in the foot.

Important features may include:

Support beneath the arch
Cushioning around the heel
A stable heel position
Appropriate firmness
Comfortable pressure distribution
A shape that matches the foot
A profile that fits securely inside the shoe

Supportive footwear with arch support, heel cushioning and a shock-absorbing insole is commonly recommended as part of plantar fasciitis management.

Why Is Arch Support Important?

The plantar fascia runs along the sole of the foot between the heel and toes and contributes to supporting the arch.

An appropriately shaped insole may help support the arch and reduce excessive loading through the plantar fascia during standing and walking. This does not mean that the highest or firmest arch is automatically best. An arch profile that feels excessively prominent may create pressure and discomfort rather than improve it.

People with flatter feet, overpronation or recurring symptoms may require more structured support than someone whose discomfort is mainly caused by standing on hard surfaces.

Why Does Heel Cushioning Matter?

Heel pain is one of the most common symptoms associated with plantar fasciitis.

Cushioning beneath the heel may help absorb repeated impact and reduce pressure during everyday activity. This can be particularly useful for people who:

Stand for prolonged periods
Walk frequently throughout the day
Work on hard flooring
Wear footwear with limited cushioning
Experience tenderness beneath the heel

Cushioning can improve comfort, but a very soft and completely flat insole may not provide enough support when arch loading or foot movement is contributing to the symptoms.

Cushioning Insoles vs Orthotic Insoles

The two types of insole serve different primary purposes.

Cushioning Insoles

Cushioning insoles primarily focus on:

Shock absorption
Pressure relief
Heel and forefoot comfort
Reducing everyday foot fatigue
Making hard surfaces feel more comfortable

They may be suitable when the main issue is repeated impact, prolonged standing or insufficient cushioning inside the shoe.

Orthotic Insoles

Orthotic insoles primarily focus on:

Supporting the arch
Stabilising the foot
Influencing pressure distribution
Managing excessive foot movement
Providing more structured biomechanical support

A structured orthotic may be more appropriate where flat feet, overpronation or another biomechanical factor contributes to recurring symptoms.

Read the full comparison:

Cushioning Insoles vs Orthotic Insoles

Full-Length vs Three-Quarter-Length Insoles

Both formats may be suitable for plantar fasciitis.

Full-Length Insoles

Full-length insoles extend from the heel to the toes and may provide:

Cushioning across the whole foot
Heel and forefoot pressure relief
A smooth transition beneath the foot
Greater comfort in trainers and deeper footwear

They usually work best in shoes with removable existing liners or sufficient internal depth.

Three-Quarter-Length Insoles

Three-quarter-length insoles finish behind the forefoot and may be easier to accommodate inside:

Formal shoes
Tighter-fitting footwear
Shoes without removable liners
Footwear with limited toe-box space

The best format is the one that provides the required support without making the shoe tight or causing the heel to lift out of the back.

Off-The-Shelf vs Custom Orthotics

Many people begin with a suitable prefabricated orthotic insole. These products are available in standard sizes, shapes and support levels and may provide sufficient support for uncomplicated plantar fasciitis.

Custom orthotics are manufactured following an individual assessment and may be considered where:

Symptoms are persistent or recurring
Foot shape is difficult to accommodate
Significant biomechanical control is required
The two feet require different corrections
An off-the-shelf device has not been suitable
A clinician identifies a specific prescription requirement

Custom devices are not automatically necessary for every case. Royal Berkshire NHS guidance notes that custom-fit orthotics may be recommended where the problem is primarily biomechanical.

Planned guide:

Off-The-Shelf vs Custom Orthotics

Who May Benefit From A Structured Orthotic Insole?

A structured orthotic insole may be worth considering if you:

Experience recurring plantar fasciitis
Have flat feet or low arches
Notice excessive inward foot movement
Need more support than a soft insole provides
Experience discomfort during prolonged walking
Have been advised to use orthotics by a clinician
Want support for both everyday and sporting footwear

However, pain location alone does not identify the underlying cause. Persistent symptoms should be properly assessed rather than managed indefinitely through trial and error.

Why Choose The Bio Advanced Full Length Insole?

The Bio Advanced Full Length Insole is a flexible EVA foot orthotic designed to provide structured biomechanical support while maintaining everyday comfort.

Features include:

Flexible EVA construction
Choice of support densities
Intrinsic 4° rearfoot support
Metatarsal raise
Sustentaculum tali support
Antimicrobial microfibre top cover
Heat-mouldable and grindable construction
Additional customisation components

The insole is designed to support the arch and rearfoot while helping relieve stress through the heel and midfoot. The product is listed for uses including plantar fasciitis, overpronation, low arches, pressure relief and tired feet.

How Should You Introduce New Insoles?

Structured insoles can change the way pressure is distributed through your feet, so it is usually sensible to introduce them gradually.

Begin with a short period of wear and increase the duration as comfort allows. NHS orthotic guidance commonly recommends gradually building toward all-day wear over approximately one to three weeks rather than wearing new devices continuously from the first day.

Check that:

The insole sits flat inside the shoe
Your toes are not compressed
Your heel remains secure
The arch support does not create sharp pressure
The shoe still fastens comfortably

Stop wearing the insole and seek advice if it causes severe pain, persistent aching, skin irritation or a noticeable worsening of symptoms.

Other Ways To Manage Plantar Fasciitis

Insoles are normally one element of a wider approach rather than a standalone cure.

Other measures may include:

Supportive footwear
Plantar fascia and calf stretching
Gradual activity modification
Avoiding prolonged barefoot walking
Heel cushioning or heel lifts
Night splints
Rehabilitation exercises
Professional assessment when symptoms persist

NHS resources recommend combining footwear and insole advice with approaches such as exercise, load management and other supportive treatments according to the individual’s needs.

Continue Reading

What Are Orthotic Insoles Used For?

Do Arch Support Insoles Help Plantar Fasciitis?

Can Orthotic Insoles Help Overpronation?