Long time Adidas shoe wearer and I am very disappointed in this purchase. I loved my Adidas Bounce I had a few years ago and thought the Springblade would be a similar shoe. After less than a month's wear, the blades started separating in the middle from the sole of the shoe. I only used these for casual wear and never once worked out in them. Not a well built &#34;Running&#34; shoe. A comfortable fit but poor construction.