The top stability trainer from Saucony, the Guide has nearly everything you want and nothing you don’t. Although the 7th and 8th versions are great shoes, the ISO has a superior ISO upper, an Everun midsole (which feels exceptionally responsive), and a more cushioned feel. It’s well-built and feels wonderful even after 20+ mile long runs. The weight is around 9.1oz and the heel-to-toe drop is around 8 mm. We’d recommend getting 500 miles out of the Guide ISO.