Best Insoles for Flat Feet: Custom and Off-the-Shelf Options
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Best Insoles for Flat Feet

James McCormack
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Flat feet, medically known as pes planus, can either be genetic or develop over time due to muscle weakening that supports the foot’s arch. If your flat feet are pain-free, you may not need insoles, but if you experience discomfort, flat feet insoles can provide the necessary support to ease your pain and improve foot function.

At Flawless Physio, we offer custom insoles for flat feet, but off-the-shelf insoles can offer substantial relief for many. Below, we share our top recommendations for both custom and off-the-shelf insoles to help alleviate your flat foot pain.

Disclaimer: This content is for informational purposes only and should not be considered medical advice.

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Best Off-the-Shelf Insoles for Flat Feet

After testing over 15 pairs of flat feet insoles from Amazon, here are our top two picks:


1. PCSsole Insoles for Flat Feet

Picture of the PCSsole Insole

The PCSsole insoles are our go-to recommendation for those seeking support for flat feet. These insoles feature a 2mm top cover for added cushioning, and their semi-rigid shell provides stability. The deep heel cup and arch support help control overpronation, making them an excellent choice for those with flat feet who need extra support.

  • Best for: Casual trainers, running shoes, sports, hiking, and walking.
  • Key features: Semi-rigid shell, deep heel cup, arch support.
Buy PCSsole Insoles for Flat Feet on Amazon

2. Gr8ful Insoles for Flat Feet

Picture of the Gr8ful Insoles for Flat Feet

The Gr8ful insoles offer a three-quarter-length design, allowing them to fit easily into most shoes. Their moderate arch support and deep heel cup help reduce strain on the posterior tibial tendon and plantar fascia, making them a solid option for flat feet.

  • Best for: Tighter-fitting shoes, like loafers or laced work shoes.
  • Key features: Three-quarter length, deep heel cup, low heel height.
Buy on Gr8ful Insoles for Flat Feet

Custom Insoles for Flat Feet at Flawless Physio

For more severe cases, custom insoles can be a game-changer. Whether your flat feet are caused by genetics, trauma, or muscle weakening, our custom-made insoles offer personalised support to relieve pain and prevent further foot issues.

At Flawless Physio, we specialise in creating custom orthotics using advanced 3D foot scanning, pressure plate analysis, and video gait analysis. This allows us to design insoles tailored to your specific foot structure, providing optimal support.

Learn more about our Custom Insoles

How Custom Insoles Help with Flat Feet

Custom-made insoles for flat feet offer numerous benefits, including:

  • Arch support: Reducing strain on your foot’s arch by evenly distributing pressure.
  • Shock absorption: Minimizing impact while walking or running.
  • Increased comfort: Helping relieve heel pain and providing overall foot support.

Our custom insoles are available in three lengths: half-length, three-quarter length, and full-length. This ensures they fit into your walking or running shoes. They also feature metatarsal pads and deep heel cups, which help stabilise the foot.

Learn more about our Custom Insoles
Book Biomechanical Assessment


Off-the-Shelf Insoles vs. Custom Insoles

While off-the-shelf insoles are useful for providing general support and comfort, custom orthotics are designed to fit your unique foot shape. This makes them more durable and effective in the long term. Unlike mass-produced inserts, our custom insoles offer personalised support that helps prevent blistering and other discomforts caused by improper fit.


Running & Gait Analysis

For flat-footed runners, choosing the right insoles is crucial. Our running gait analysis helps us determine the best type of insole to improve your foot mechanics while running. We design insoles that are comfortable and rigid enough to absorb the impact forces involved in running.


How Much Do Custom Insoles Cost?

  • Biomechanical Assessment: £125
  • Custom Orthotics: £265

Learn more about our Custom Insoles
Book Online


Frequently Asked Questions (FAQ)

Do Insoles Work for Flat Feet?

Research shows that therapeutic insoles can provide additional support for the medial longitudinal arch, improving foot mechanics and relieving pain in people with flat feet.

Are Orthotics Good for Flat Feet?

Studies, such as one conducted on Air Force recruits, show that orthotics reduce injury risk, improve foot health, and alleviate lower limb pain for individuals with flat feet.

What Are the Best Running Shoes for Flat Feet?

The best running shoes for flat feet depend on your unique foot mechanics. A gait analysis can help determine whether a supportive or neutral shoe is best for your condition.

Do Flat Feet Cause Knee Problems?

Yes, multiple studies have linked flat feet to knee issues such as knee osteoarthritis and cartilage damage.


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Learn more about our Custom Orthotics Buy Insoles For Flat Feet