Saucony Freedom ISO Review: A Durable Workhorse of a Shoe。NIB Saucony Freedom ISO running shoes in ocean wave blue. Men’s 8.5. Box has some damage - see photos. Described as: With an engineered stretch mesh upper, the Saucony Freedom ISO offers breathable flex with a comfortable fit, while the EVERUN topsole delivers responsive energy-return and plush cushioning. Neutral running shoes are designed to provide a smooth sensation without correcting your gait. They allow your natural motion to flow, while still offering a snug fit and a cushioned feel underfoot. As such, they’re ideal for runners who don’t overpronate.