The Tuned Density Midsole system changes the individual midsole density depending on gender and weight. Our product creation team has developed three different midsole densities to guarantee an ideal amount of cushioning for every runner.
Lighter runners need a „softer“ midsole than heavier runners. The midsole’s density is measured according to a scale by Albert Shore. A higher number means a higher density. While the women’s styles feature a Shore-density of 50, the men’s styles come in two different midsole densities. It is 54 Shore for the smaller sizes (US 7 - 10,5) and 57 Shore for the bigger sizes (US 11-15).