“Wow!” That’s what many say who try on a pair of Spira shoes for the first time. People can usually feel the difference right away thanks to Spira’s unique patented and patents pending WaveSpring® Technology.


The WaveSpring® is a stable and lightweight spring that is placed in the heel and forefoot of every Spira® running shoe. Our patented WaveSpring® Technology allows people to participate in their activities for longer periods of time, with far less stress on muscles and joints. Think of our technology as “little shock absorbers” for your body.

Mechanical spring technology improves running economy in endurance runners

Journal Of Human Sport & Exercise
-University of Alicante, Vol 9, No 4 (2014)

• Study regarding the impact of the WaveSpring® Technology on metabolic function
- Lower heart rate
- Lower oxygen consumption
- Lower recovery rate

• Concludes that runners can run an average 6 minutes faster in a marathon with Spira® shoes than other brands


Will Spira® shoes eliminate my knee problems?

Letters from our customers state that our shoes have helped to alleviate issues such as: knee, back and joint pain; medical foot issues such as plantar fasciitis, arthritis, heel spurs and Achilles tendon issues; shin splints, body fatigue, pain, tenderness among many others.

Will Spira® shoes guarantee that I break my PR?

We don’t guarantee that you will break your PR, but we’ve had numerous testimonials from runners and athletes who have broken their PRs using Spira® shoes.

Are Spira® shoes “banned” for competition?

Runners competing in Spira® shoes have won hundreds of major marathons and road races world wide. We are unaware of any incident where an athlete was disqualified for competing in Spira® .

Can I wear my orthotic in a Spira® shoe?

Yes, you can remove the shoe insert and replace it with an orthotic.

You have successfully subscribed!