Saucony Ladies Kinvara 4 Shoes AW13. Kinvara 4 is a synthesis of elements from previous versions. The upper utilises FlexFilm for a lightweight, seamless feel. Kinvara 4 is upgraded from ProGrid to PowerGrid in the heel landing zone for smoother transitions and an improved ride. The Kinvara has revolutionised not just the design of Saucony running shoes, but all running shoes. By creating a shoe which enables the foot to move naturally, yet still provide enough cushioning for the runner to use on longer runs. And buy this Saucony Ladies Kinvara 4 Shoes AW13 Now £59.99.