Skip to product information
Firm Arch Support Insoles
  • Firm Arch Support Insoles
  • Firm Arch Support Insoles
  • Firm Arch Support Insoles
  • Firm Arch Support Insoles
  • Firm Arch Support Insoles
Firm Arch Support Insoles

Firm Arch Support Insoles

$35.99
$35.99 $52.99 -32% OFF
Corrects severe overpronation & inward rolling
6.5mm medial lift for maximum realignment
Designed for all-day comfort
Clinically Tested & Podiatrist Recommended

OFFER ENDS SOON

Size Guide

SIZE US Men US Women UK/AUS EUR Length (mm)
XS 4 - 5.5 6 - 7.5 3 - 4.5 36 - 38 245
S 6 - 7.5 8 - 9.5 5 - 6.5 39 - 41 260
M 8 - 9.5 10 - 11.5 7 - 8.5 41 - 43 275
L 10 - 11.5 12 - 13.5 9 - 10.5 43 - 45 290
XL 12 - 13.5 14 - 15.5 11 - 12.5 45 - 48 310

*If you are between sizes, we recommend sizing up.

*All insoles can be trimmed to match your shoe size.

Size Comparison

Size Comparison
Single

Single

Standard price

1

$35.99 each

Most Popular
Duo

Duo

Free shipping

You save 18%

1
2

- each

$35.99

Best Value
Trio

Trio

Free shipping

You save 28%

1
2
3

- each

$35.99
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • Visa

90 Day Guarantee

Built for severe flat feet

Fits in 97% of shoes

Which StepAlign is right for me?

Not sure which type to choose? It's simple — match your arch type:

  • LOW+ → Severe flat feet, heavy inward rolling, X/O legs
  • LOW → Mild flat feet, slight overpronation, shin splints
  • MED → Normal arches, everyday comfort & sport performance
  • HIGH → High arches, plantar fasciitis, heel & ball-of-foot pain

Still unsure? Go with LOW — it works well for most people.
Will StepAlign fit my shoes?

Yes. StepAlign insoles are designed to fit your regular shoe size — no need to size up.

  • Trimmable edges for a perfect fit
  • Works in sneakers, boots, dress shoes, trainers & more
  • Simply remove the original insole and replace
In-Between Sizes or Too Small?

Between sizes? Always size up, then trim to fit using the guide on the back

Smaller than our smallest size? Order the smallest size and trim down
Simple. Adjustable. Made to fit you.
Can StepAlign help my foot condition?

Yes. StepAlign is clinically designed to relieve:
Plantar fasciitis · Arch pain · Heel pain · Overpronation · Metatarsalgia · Shin splints
Our biomechanical correction technology addresses the root cause — not just the symptoms.
How long do StepAlign insoles last?

Built to last 12+ months with regular use. Hand wash with mild soap and air dry for optimal lifespan. Replace when cushioning feels noticeably reduced.
Shipping & Delivery

Tracked & insured worldwide shipping. Estimated delivery: 4–16 business days. A tracking number will be sent to your email once your order ships.
Return & Refund Policy

We stand behind every pair. Try StepAlign risk-free for 90 days — if you're not satisfied for any reason, contact us and we'll make it right. No questions asked.

StepAlign has relieved pain for 5,000+ customers.

StepAlign insoles help relieve:
Foot Pain
Plantar Fasciitis
Runner's Knee
Pronation and Supination
Back Pain
Achilles Tendonitis
Shin Splints
Hip Pain
LOW+ · Severe Flat Feet

Engineered to Correct What Other Insoles Can't

The only insole built for severely collapsed arches — not just comfort.

If you have severe flat feet, you already know regular insoles don't work. They flatten out the moment you step on them, leaving your ankles rolling inward, your knees aching, and your lower back paying the price by mid-afternoon.
StepAlign LOW+ was built differently. Our 6.5mm medial wedge and reinforced arch shell work together to physically realign your ankle, knee, and hip with every step — correcting overpronation at the source, not masking it. Developed with biomechanical correction principles, this insole does what custom orthotics do at a fraction of the cost. Just slip them in and feel the difference from step one.

 Try StepAlign LOW+ Risk-Free →

See our 500+ verified reviews ★ Trustpilot
Before
After

The Future Is Foot Pain-Free

95%

Reduced Foot Pain: Arch support & cushioning significantly help foot pain.

94%

Improved Comfort: Comfort with every step, minimizing fatigue & discomfort.

90%

Reduce Injury Risk: Cushioning & support helps reduce the risk of foot injuries.

* Results according to clinical/consumer studies.

Recommended by Podiatry & Sports Medicine Professionals

"As a general practitioner, I regularly see patients struggling with flat feet, overpronation, and chronic foot pain that affects their whole posture. StepAlign's tiered arch support system is exactly what I look for — biomechanically sound, properly graded by foot type, and built to last. I recommend it to patients before they consider expensive custom orthotics."
Dr. Emily Vance
General Practitioner · GP
Canada

Built for All Purposes

Nurses

Runners

Teachers

Security Guards

Sales Managers

Waiters

Construction Workers

Athletes

Older Adults

Frequently Asked Questions

Who should choose the 29mm Firm Arch Support insoles?
Choose 29mm if your arches are very flat, your ankles roll inward a lot when you walk, or you’ve noticed long‑term knee discomfort linked to overpronation.
How do these insoles help with overpronation?
The raised inner arch and deep heel cup help guide your heel back toward neutral, which supports flatter feet and may help your knees and ankles feel more stable.
Can they help with forefoot and bunion discomfort?
By supporting the arch and redistributing pressure, these insoles help relieve pressure associated with forefoot overload and bunions, especially during walking and standing.
Are the 29mm insoles very hard? Will they hurt at first?
The arch is firm on purpose to hold up a severely collapsed arch, so some pressure is normal in the first few days. Start with 1–2 hours of wear and increase gradually as your feet adapt.
What if I have severe flat feet but sensitive soles?
Begin with short wear times and cushioned socks. If the firm support still feels too strong after a week, you can try the 31mm Moderate Support insoles for a gentler feel.

NOT SURE YOU CHOSE THE RIGHT LEVEL?

Compare all four StepAlign insoles

LOW+ insole LOW+ Severe Flat Feet LOW insole LOW Mild Flat Feet MED insole MED Normal Arches HIGH insole HIGH High Arches
Arch height 29mm
1.1" 		31mm
1.2" 		33mm
1.3" 		35mm
1.4"
Support level Firm Moderate Balanced Max
Medial lift +6.5mm +6mm +4mm +4mm
Lateral base 4mm 4mm 4mm +6mm
Correction ← Inward rolling ← Inward rolling ↕ Neutral → Outward rolling
Best for Severe flat feet · heavy overpronation · X/O legs Mild flat feet · standing all day · shin splints Normal arches · running · gym · daily comfort High arches · plantar fasciitis · supination
✓ You are here View LOW → View MED → View HIGH →
LOW+ insole LOW+

Severe Flat Feet

Arch height 29mm 1.1"
Support Firm
Medial lift +6.5mm
Lateral base 4mm
Correction ← Inward rolling
Best for Severe flat feet · heavy overpronation · X/O legs
✓ You are here
LOW insole LOW

Mild Flat Feet

Arch height 31mm 1.2"
Support Moderate
Medial lift +6mm
Lateral base 4mm
Correction ← Inward rolling
Best for Mild flat feet · standing all day · shin splints
View LOW →
MED insole MED

Normal Arches

Arch height 33mm 1.3"
Support Balanced
Medial lift +4mm
Lateral base 4mm
Correction ↕ Neutral
Best for Normal arches · running · gym · daily comfort
View MED →
HIGH insole HIGH

High Arches

Arch height 35mm 1.4"
Support Max
Medial lift +4mm
Lateral base +6mm
Correction → Outward rolling
Best for High arches · plantar fasciitis · supination
View HIGH →

← Swipe to compare →

Still not sure which level is right for you?

Take the 60-second Comfort Quiz →