EXPERIENCE THE “WOW”
Mechanical spring technology improves running economy in endurance runners
-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
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.