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Summer 2026 Pre-Order

Be the first to get our exclusive flagship insoles with special pre-order pricing.

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Different on purpose. Better by design.

Air Powered Shoe Inserts

Comfort and support that you can actually feel. A first step feeling like no other.

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We're Tired of Cheap Insoles, and Your Feet Are Too.

Big Shoe has been giving you $1.00 foam and gel insoles for decades. Numadx inserts are designed to reduce pressure and ease pain, and help you stay light on your feet — all day, every day.

Pneumatics: Air cells. Energy transfer. Impact absorption.

Made of pressurized air, they re-distribute the force and weight of every step you take. Pretty cool right?

Each insole can be customized and is specifically designed for the way you move. Originally developed and used for protective equipment in the military and the NFL, and now available to you.

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Your Fit, Your Way.

Testimonials

Amazing experience! I'm a nurse and on my feet quite a bit. Since using Numadx inserts, my feet feel so rested at the end of the day. These inserts are so bouncy and comfortable like you're walking on air! I love love them!!

- Debbie, Nurse

I have hip and back problems, but I’ve noticed an amazing difference wearing Numadx, particularly when I’m standing for long periods of time in the operating room, even compared to the expensive running shoes I have worn. I plan to get a set for all my shoes

Dr. Philip, Neurosurgeon

Actual science with actual relief. I work on healthcare and I can't believe my foot pain is actually relieved! I thought there was no hope even after seeing a podiatrist to address the issue. Now I look forward to putting on my shoes

- Clay, Healthcare Technician

My Numadx inserts have been instrumental in relieving pain and discomfort that I've struggled with for years stemming from off-and-on runner's knee. They are a perfect combination of firm and supportive (not too squishy) as well as bouncy and reactive.

- William, Runner

Try Numadx to feel pure joy in your feet throughout the day.

- David, Athlete

Step Into Comfort