What came first the Newton or the Spira? Anyone used these?
Run/hop like Kangaroo my friends!
http://spirafootwear.com/wavespring_technology.php http://spirafootwear.com/inspirational_stories_TeamHoyt.php
So Newton has Craig Alexander, Spira has Dick Hoyt.
Crowie, Hoyt, Crowie, Hoyt…hmm I wonder…
spira also has lewis elliot, a good pro racer. was at kona last year
Spiras have been around for a while. Quite a bit longer than Newtons.