For its best running shoes, Saucony has re-engineered what goes above and below your foot. The “ISO” identifies the Triumph as one of the models that has been redesigned around a sock-like upper whose snug, breathable fit has become highly popular. Saucony is also introducing Everun to its shoes, a competitor to Adidas’s Boost rubber. As Saucony’s premium neutral trailer, the Triumph offers generous cushioning in the form of both an Everun topsole and midsole layer, so the cushioning isn’t squishy but energetic and bouncy.