Went to the sites that sell them and HOLY SMOKE! I paid 30US$ for mine way back (in Zim) for what would be called the Vellie now, though mine are a little different and they are $180 bucks. The Tracker is over 300US! My exact shoe is not listed anymore, though as I say the Vellie is close. They do last though. Mine has what they call the Ripple sole.