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7 Best Insoles for Flat Feet—Tested by Physical Therapists

Our experts have tested and reviewed each product to help you find the best insole to relieve your flat feet-related pain and improve your posture.

a man in a white shirt and blue and pink suspenders
By Babafemi Adebajo
Romi Hector
Edited by Romi Hector

Updated November 7, 2023.

A person fitting an insole to the base of their foot.

Insoles can help relieve pain, redistribute pressure, and correct any malalignment in the leg due to different types of flat feet. However, because of the sheer number of insoles on the market, making a choice can be stressful. To help, we’ve narrowed down the list to include only the best types of insoles for flat feet.

7 Best Flat Feet Insoles According to Physical Therapists

1. Overall Best: Upstep Flat Feet Custom Orthotics

2. Best for Standard Volume Shoes: Protalus T-100 Insoles

3. Best for Active Lifestyle: Bilt Labs Flat Feet Custom Orthotics | Active

4. Best for Loose-Fitting Shoes: SOLE Softec Ultra Insoles

5. Best Budget: Tread Labs Pace Insoles

6. Best Flexible: FitMyFoot Full-Length Insoles

7. Best for Moderate-Fitting Shoes: Superfeet BLUE Insoles



Why Should You Wear Insoles for Flat Feet?

Insoles for flat feet can provide much-needed support and comfort for those who experience pain or discomfort caused by flat feet. These orthotics can help to distribute pressure evenly across the foot, reducing the strain on specific areas and preventing further damage and overuse injuries. Wearing insoles can also:

  • Improve your posture and alignment
  • Improve foot and body alignment
  • Enhance shock absorption and support arches
  • Improve balance and stability
Overall best insoles for flat feet

1


Exceptional
10
a pair of Upstep's black shoe inserts for flat feet sitting on top of a white block

Upstep Flat Feet Custom Orthotics

Step into comfort with Upstep

Read review

Refunds

180-day money-back guarantee


Shipping and returns

Free shipping and free returns in the US


Coverage

FSA/HSA eligible


Payment plans

Klarna eligible; 4 interest-free payments

Upstep Flat Feet Custom Orthotics are easily the best insoles for flat feet—and the most effective. Our custom orthotics for flat feet are designed specifically for you by expert podiatrists according to your footprint, to help with existing foot conditions and to fit your lifestyle. They also help maintain body alignment, control abnormal foot motion, and prevent injury during walking.

At Upstep, we put our customers first by guaranteeing satisfaction and providing flexible payment options. Our insoles are 100% risk-free and come with a 180-day money-back guarantee. You can make payments with your HSA and FSA cards or choose to make four interest-free payments using Klarna. Not to mention, we also offer free shipping and returns.

Custom-made by top podiatrists

Addresses your foot needs directly

180-day money-back guarantee

FSA and HSA eligible

Free shipping and returns

Short waiting period before receiving orthotics


Best flat feet insoles for standard volume shoes

2


Outstanding
9.9
Side and bottom view of Protalus T-100 black and blue insoles

Protalus T-100 Insoles

Refunds

90-day money-back guarantee


Shipping and returns

Free shipping for domestic orders $25+ and 60-day returns


Coverage

FSA/HSA eligible


Payment plans

3 interest-free payments with Affirm

Protalus T-100 are full-length insoles for standard volume shoes such as dress shoes and casual shoes. These insoles align the body and support the entire foot, especially the subtalar joint, preventing excess foot motion. This alignment reduces stress on the ankles, knees, and hips.

Protalus T-100 shoe inserts for flat feet are designed with semi-rigid orthotic arch support and feature a patented Tri-Planer technology to optimize the ankle-heel position. The insoles have a top cloth that is anti-bacterial, anti-friction, and moisture-wicking. The EVA foam molded body provides cushioning and comfort and have forefoot and heel padding made of poron for enhanced shock absorption.

However, keep in mind that Protalus shoe inserts for flat feet are not custom-made, and they do not fit quite as well as custom orthotics, making them less effective for flat feet.

Align and support your body

Available online and in-store

90-day money-back guarantee

Not custom-made

Less perfect fit

Possible insufficient support

Feet may slip around due to thinness


Best flat feet insoles for active lifestyle

3


Outstanding
9.8
Bilt Labs flat feet custom orthotics | active

Bilt Labs Flat Feet Custom Orthotics

Refunds

6 months money back guarantee


Shipping and returns

Free shipping and returns


Coverage

FSA and HSA eligible


Payment plans

4 interest-free installments with Shop Pay

Bilt Labs custom orthotics for flat feet are highly recommended due to their unique features and benefits—they are designed with the same medical-grade process and materials used by doctors for their patients, with a focus on exceptional support and comfort.

Bilt Labs insoles for flat feet are custom-made based on molds of your feet, ensuring a perfect fit and maximum effectiveness in addressing flat feet and associated conditions like plantar fasciitis and overpronation.

With enhanced shock absorption and gait correction, these orthotics for flat feet alleviate discomfort, prevent secondary issues, and improve overall foot health. Whether you're engaging in sports or going about your daily activities, Bilt Labs custom orthotics for flat feet offer the stability and pain relief you need.

Custom-made

Medical-grade materials and process

Enhanced shock absorption

Alleviates discomfort and pain

FSA and HSA eligible

Risk of error when completing paperwork

Long processing and shipping time—it may take up to 21 business days to receive


Best flat feet insoles for loose-fitting shoes

4


Outstanding
9.7
SOLE Softec Ultra Insoles

SOLE Softec Ultra Insoles

Refunds

90-day footbed guarantee


Shipping and returns

Free shipping on orders $89+ and 30-day returns


Coverage

Not FSA/HSA eligible


Payment plans

Installment payments not available

SOLE Softec shoe inserts for flat feet are made from a moldable EVA base and are ideal for conditions where cushioning and comfort are needed, such as flat feet.

Softec insoles are ideal for loose-fitting footwear and activities requiring maximum shock absorption. They help improve balance, reduce plantar fascia strain, and promote equal weight distribution on the feet while eliminating pain, reducing fatigue, and helping to prevent injury.

For a store-bought insole, Softec insoles are fairly effective. Their custom-moldable design gives you all the benefits of personalized support at an affordable cost. However, these simply do not hold up compared to custom orthotics for flat feet that factor in foot pathology.

As Softec insoles are not custom-fitted, they require molding—alternatively, you can wear the footbeds for a few days to allow them to adapt to your feet, but they do seem to take longer to break in.

Comfortable

Provide shock absorption

Promote equal weight distribution

Not custom-made

Stiff arch support

It can take longer to break in

Molding process may cause imperfect fit


Best budget insoles for flat feet

5


Outstanding
9.6
Tread Labs Pace Insoles

Tread Labs Pace Insoles

Refunds

90-day money-back guarantee


Shipping and returns

Free shipping in the US and free returns within 90 days


Coverage

FSA/HSA eligible


Payment plans

4 interest-free installments with Shop Pay

Tread Labs Pace Insoles are designed to offer precise arch support and a deep heel cup, following the recommendations of podiatrists. These insoles aim to reduce impact, enhance stability, improve balance, and alleviate pain with each step. They come with a million-mile guarantee, indicating their durability for long-term use.

Tread Labs Pace shoe inserts for flat feet are easily the most affordable store-bought insoles available. They come in multiple sizes and arch heights, allowing you to find as close a fit as possible. They are best for shoes with full-length removable inserts and work well for overpronators and those with plantar fasciitis.

However, they do not produce the best results when used to manage flat feet-related pain since they don't allow for the perfect fit.

Affordable

Available in multiple sizes and arch heights

Guaranteed to replace cracked or misshapen insoles

Not custom-made

Less than perfect fit

Not as durable

Provide support but not cushioning


Best flexible insoles for flat feet

6


Outstanding
9.5
Black insoles from FitMyFoot on display

FitMyFoot Full-Length Insoles

Refunds

30-day money-back guarantee


Shipping and returns

No free shipping or returns


Coverage

FSA/HSA eligible


Payment plans

Installment payments not available

FitMyFoot Full-Length Insoles are ideal for everyday footwear and are designed to provide precise support and allow you to move naturally. They are designed to reduce pain, improve stability, and increase comfort. The insoles are made of premium foam material and have a biomechanically optimized heel shape for shock absorption and cushioning.

FitMyFoot insoles for flat feet are easier to get than store-bought brands. You can measure your feet on their mobile app and have a 3D print of your insole sent to you.

FitMyFoot insoles have Biomechanic Smart Filters that are capable of recognizing flat feet and creating a custom arch support that is unique to the size and shape of your foot—this feature ensures healthier alignment and reduces uneven loading and pressure on your feet.

This cost-effective solution serves as a great alternative to expensive medical-grade orthotics. However, the brand's returns policy only honors returns within 30 days of purchase, and the customer will be responsible for the shipping costs.

Custom 3D printed insole

Improve alignment and stability

FSA and HSA eligible

App precision

Can't be trimmed to fit shoe size

Limited 30-day return policy

Customer responsible for shipping


Best flat feet insoles for moderate-fitting shoes

7


Outstanding
9.4
Front and back of blue insoles from Superfeet on display

Superfeet BLUE Insoles

Refunds

60-day money-back guarantee


Shipping and returns

Free shipping sitewide, and free returns within 60 days


Coverage

Not FSA/HSA eligible


Payment plans

Installment payments not available

Superfeet BLUE insoles are designed to offer medium arch orthotic support, reducing stress on feet, ankles, knees, and back. The insoles come with a reinforced stabilizer cap, which acts as the base of the insole to support the rearfoot, and have a closed-cell foam that provides a firm foundation to support the foot. They also come with an organic odor-control coating that helps eliminate odor-causing bacteria.

Superfeet BLUE are thin insoles that can replace removable sock liners in roomy to moderate-fitting shoes. They help to improve the overall fit and comfort provided by your shoes.

Superfeet BLUE shoe inserts for flat feet are affordable and durable, lasting up to a year. These insoles are made for everyday use and provide some arch support and shock absorption. However, keep in mind that these insoles are thin and might not be ideal for everyone's flat feet-related issues.

Comfortable

Affordable

Durable up to a year

Not custom-made

Provide medium arch support

Better suited for everyday use, not flat feet



What to Look for in Insoles for Flat Feet

  • Arch support: Look for insoles with good arch support to distribute pressure evenly across your foot. This feature is essential for those with flat arches, and it helps absorb shock when walking.
  • Deep heel cup: Insoles with deep heel cups are beneficial for individuals with flat feet, as they provide stability, reduce overpronation, and alleviate heel pain. They can also enhance standing balance.
  • Durable materials: Choose insoles made of durable materials like EVA, polyurethane, cork, rubber, foam, or gel to ensure they can withstand daily wear and tear, preventing the need for frequent replacements.
  • Comfort: Seek insoles that are comfortable to wear for extended periods. Comfortable insoles reduce pain, friction, and pressure areas on your feet, making them a more attractive option.

How We Selected and Tested the Best Insoles for Flat Feet

To select the best insoles for flat feet, we conducted extensive research and testing. We looked at a range of factors, including the level of support provided, the materials used, and the overall design of the insole. We also tested each insole to ensure that it was comfortable, durable, and effective at reducing pain and discomfort.

Ready to Step Up Your Comfort Game?

While all the above insoles will produce some results, Upstep insoles are the best insoles for flat feet as they are custom-made by the top podiatrists and specifically designed to fit the wearer, allowing you to receive the exact support you need.

Upstep Flat Feet Custom Orthotics' custom fit, excellent quality, and craftsmanship provide the best value for money. It is my professional opinion that there is no going wrong with Upstep's insoles for flat feet.

Upstep Flat Feet Custom Orthotics

5.0/5(4,654 reviews)


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Meet the Expert

Babafemi Adebajo is a qualified physiotherapist and is currently pursuing a Master's degree in the same discipline. Babafemi has over ten years of experience writing for health, physical therapy, and podiatry niches.