





Size chart
The insoles have cutting lines on the back. Cut these lines with scissors for a custom fit. If you're between sizes, choose the larger one.
EU Size | UK Size | Length (cm) | Length (inches) |
---|---|---|---|
39 | 5 | 24.0 | 9.45 |
39.5 | 5.5 | 24.5 | 9.65 |
40 | 6 | 25.0 | 9.84 |
40.5 | 6.5 | 25.5 | 10.04 |
41 | 7 | 26.0 | 10.24 |
41.5 | 7.5 | 26.5 | 10.43 |
42 | 8 | 27.0 | 10.63 |
42.5 | 8.5 | 27.5 | 10.83 |
43 | 9 | 28.0 | 11.02 |
43.5 | 9.5 | 28.5 | 11.22 |
44 | 10 | 29.0 | 11.42 |
44.5 | 10.5 | 29.5 | 11.61 |
45 | 11 | 30.0 | 11.81 |
45.5 | 11.5 | 30.5 | 12.01 |
46 | 12 | 31.0 | 12.20 |
46.5 | 12.5 | 31.5 | 12.40 |
47 | 13 | 32.0 | 12.60 |
47.5 | 13.5 | 32.5 | 12.80 |

Is Your Child's Foot Pain Getting Worse?
Heel pain, flat feet, and overpronation are common in growing children. Left unsupported, these issues can affect your child's comfort during school, sports, and daily activities.
The challenge: NHS podiatry waiting lists average 14 months. Custom orthotics cost £200+ and may be outgrown quickly. Pharmacy insoles often lack proper support for growing feet.
The solution: Footstr insoles provide professional-grade foot support at a fraction of custom orthotic costs, available immediately without waiting lists.
Designed specifically for children ages 7-16 with flat feet, overpronation, heel pain, and arch strain.

From Daily Complaints to Pain-Free Play
Footstr insoles are specifically designed for the foot problems that worry parents most - flat feet, overpronation, heel pain, and growing pains.
What parents notice within days:
- No more complaints of foot pain after school
- Child stops limping during or after sports
- Better sleep without nighttime heel pain
- Increased confidence in PE and playground activities
- Child can wear normal school shoes comfortably
Immediate relief: Most children experience noticeable comfort improvement within the first week of use.
What Parents Are Saying
Real families, real relief
Excellent 4.8 / 5
The Footstr™ difference

Proven benefits, proven results
*Based on 3-month customer survey of 500 families
Footstr Insoles Other Insoles
  | Footstr | Others |
---|---|---|
Overpronation Correction | ||
Targeted Heel Cushioning | ||
Massaging Comfort Zones | ||
Arch Support | ||
Instant Relief |
Frequently Asked Questions
Will my child actually wear them?
Will my child actually wear them?
This is every parent's biggest worry after buying insoles that end up "collecting dust." Footstr insoles are designed specifically for comfort - they're soft, flexible, and low-profile so they fit into any shoes without making them feel tight or uncomfortable.
Unlike bulky NHS insoles that kids complain about, Footstr insoles are so comfortable that children often forget they're wearing them. They work in school shoes, trainers, and boots without anyone noticing. We've had parents tell us their child asks for the insoles to be put in all their shoes because "they feel better."
How do I know this isn't just another gimmick?
How do I know this isn't just another gimmick?
We understand your frustration - you've probably tried cheap pharmacy insoles that fell apart or didn't help. Footstr insoles are developed in collaboration with medical professionals and based on proven orthotic principles used to treat pediatric foot conditions.
Unlike generic gel pads, these are specifically engineered for growing feet with targeted support zones. Plus, we offer a 90-day money-back guarantee - if they don't work, you get a full refund, no questions asked. We wouldn't offer this if we weren't confident in the results.
What if they don't work for my child's specific problem?
What if they don't work for my child's specific problem?
Footstr insoles are designed to address the most common foot issues in growing children - flat feet, overpronation, heel pain (including Sever's disease), arch strain, and general foot fatigue. Whether the pain is caused by growth spurts, poor foot alignment, or activity strain, our insoles help by improving posture and distributing pressure more evenly.
If you're unsure about your child's specific condition, try them for 90 days. If you don't see improvement in comfort and pain levels, return them for a full refund.
Why not just wait for NHS treatment?
Why not just wait for NHS treatment?
Current NHS pediatric podiatry waiting lists average 14 months in many areas. That's 14 months of your child potentially sitting out of sports, complaining of pain, or developing compensatory movement patterns that could cause other issues.
NHS treatment often provides basic foam insoles (if anything) - similar to what you can buy at Boots. Footstr offers professional-grade support available immediately, for less than the cost of private consultation fees, let alone custom orthotics.
What makes Footstr insoles different from others?
What makes Footstr insoles different from others?
Footstr insoles combine heel cushioning, arch support, and gentle alignment correction specifically designed for growing feet. Unlike regular insoles, they're built to support kids during long school days, sports, and growth spurts without adding bulk or discomfort.
They're designed to support children ages 7-16, accommodating the rapid changes in growing feet while providing consistent comfort and pain relief. The materials are durable enough to withstand active kids but flexible enough to feel natural.
Are they approved or recommended by doctors?
Are they approved or recommended by doctors?
Footstr insoles were developed in collaboration with medical professionals and are based on proven orthotic principles used by podiatrists to treat pediatric foot conditions. Many NHS-registered practitioners recommend similar support for children with foot pain.
The design follows established medical guidelines for supporting growing feet and correcting common alignment issues that cause pain in children and teens.
What kind of pain do Footstr insoles help with?
What kind of pain do Footstr insoles help with?
Footstr insoles help relieve common pain points in growing kids including heel pain (often called "growing pains" or Sever's disease), arch soreness, knee discomfort from poor foot alignment, and general foot fatigue after long days at school or sports.
Whether the pain happens in the morning, after activities, or throughout the day, proper foot support often provides significant relief. In fact, 95% of children report noticeable pain reduction within the first week of use.
How long do they last?
How long do they last?
With regular use, Footstr insoles typically last 6-12 months, depending on your child's activity level and growth rate. We recommend replacing them within this timeframe as the cushioning and support naturally compress over time, and growing feet may need size adjustments.
Unlike custom orthotics that cost hundreds and may be outgrown in months, Footstr insoles are affordable to replace as needed while maintaining consistent support.
What size should I buy and how do I clean them?
What size should I buy and how do I clean them?
Choose the size that matches your child's current shoe size - no need to size up. The insoles can be trimmed along the edges for a perfect fit if needed.
To clean, simply wipe with a damp cloth and mild soap. Avoid machine washing. Air dry completely before putting back in shoes. You can also check our detailed size guide for specific fitting instructions.
Do you offer a guarantee?
Do you offer a guarantee?
Yes, we offer a 90-day money-back guarantee. If you're not completely satisfied with the comfort and pain relief Footstr insoles provide your child, return them for a full refund - no questions asked.
We're confident these insoles will make a real difference in your child's comfort and activity levels. This guarantee removes any risk from trying them - something many parents wish they'd had with previous purchases that didn't work out.
Trusted by Healthcare Professionals
Developed with Podiatrists Footstr insoles use proven orthotic principles - the same biomechanical concepts found in expensive custom orthotics.
Professional-Grade Materials Unlike basic foam insoles, Footstr provides targeted support, shock absorption, and durability designed for active children.
NHS-Registered Practitioners Recommend Healthcare professionals who've seen the results recommend Footstr to families seeking effective support without custom orthotic costs and wait times.
"The principles behind Footstr align with what we recommend for young patients with foot pain."
- Dr. Sarah Williams, Podiatrist, Manchester