Orthotic Sizes: How to Find the Right Insole Fit

Full-Length Insole Sizing

For full-length orthotic innersoles, the simplest and most accurate method is to remove the existing factory liner from your footwear. Measure the total length of your current insole from heel to toe, then compare this measurement against the online sizing chart. Because full-length insoles often replace the standard footbed, getting an accurate length match helps prevent overcrowding or slipping inside the shoe.

Three-Quarter Length Insole Sizing

Three-quarter length orthotics are designed to sit behind the ball of the foot, making them ideal for shoes where the existing insole cannot be removed. To size a 3/4 orthotic properly, measure your foot from the back of the heel to the ball of the foot (the metatarsal joint). Matching this measurement to the product size guide ensures the arch structure sits in the correct anatomical position to support your foot without crowding the toe box.

Key Steps for Sizing Your Orthotics

• Remove the original factory liner from your shoe to measure full-length insoles accurately.
• Measure from your heel to the ball of your foot when selecting 3/4 length orthotics.
• Check the product-specific sizing guides and pop-up charts available on product pages before purchasing.
• Ensure the arch support aligns naturally with your foot's arch rather than pushing into the heel or toes.

This content is for informational purposes only and does not replace professional medical advice. If you suffer from persistent foot pain, plantar fasciitis, or lower limb issues, consult a qualified podiatrist or healthcare professional for personalized assessment.