Spira Shoes, Sneakers, and Running Shoes

The WaveSpring Technology is the heart and soul of Spira shoes. This technology may be the most significant advancement ever achieved in the footwear industry. Unlike traditional shoe midsoles made primarily of foams, rubber compounds, or polymers, WaveSpring technology stores and disburses energy with every step.

Testing performed at Michigan State University in 2001 reported that 87- 96 percent of the energy is returned from the WaveSpring. This is the highest energy return score for any midsole material ever tested. As a result, Spira footwear not only cushions, but returns energy. In a very real sense, the WaveSpring enables you to recycle your own energy!

The WaveSpring technology is built into the heel and midsole of every Spira shoe. When engaged in high-impact activity like running or jumping, where peak impact is four to five times body weight, a reduction of 20 percent is quite significant. It is as if a 200lb person suddenly weighs 160lbs for purposes of determining stress on the body. The stress reduction can, in turn, reduce injury and allow for faster recovery time following vigorous activity.

The WaveSpring is laterally stable, lightweight, compact, and can easily fit into a typical shoe midsole. Although this technology can create a huge impact, your shoe appears normal and does need an elevated platform to provide full function. Plus, traditional midsole materials work through compression and often breakdown quickly. The WaveSpring is mechanical. The spring will outlast the shoe. The wearer will have a "new shoe" feel from the first day it is worn to the last.

Look for the WaveSpring technology in men's and women's outdoor, walking, casual, running and racing and work and safety shoes. Each shoe will provide you with never-before felt comfort as well as style. Expect more - get Spira!

Brand: Spira
Model: Athletic Mesh
Reviewer: easyrider from FL
Date Submitted: February 10, 2009
Review:
Omigod - these salking shoes are so ugly! But, if i want to run, there the only tennie I want to wear. Tried a piar on 4 a joke...the joke was on me. there like a second foot, and i throw sneakres in washer, no prob.