adidas FYW S-97

When it first appeared in 1997, the adidas FYW S-97 was the first running shoe to utilize adidas’ »Feet Your Wear«-technology. This innovative design principle was built on the realization that square-cut soles - as most sporting footwear had at the time - were one of the main causes of instability in a shoe, leading to injuries from ankle roll and other motions caused by the shoe not naturally following the shape of the human foot. The solution then was to radically alter the approach to how soles were constructed, creating wider, lower-to-the-ground soles that curved from outsole to midsole.