These shoes are really great. I've done Nike Vomero's, and fivefingers. I still run five's, but the kinvara is my favorite race shoe.
If you like fast ultralight shoes these are for you. They are a perfect marathon shoe.
Amazon.com Product Description
Saucony's Progrid Kinvara offers the best combination of lightweight materials and structure to give you a shoe that feels like you have nothing on your feet. ProGrid Lite in the heel offers shock attenuation and comfort, while the minimal midsole construction delivers standard protection from the pavement.
From the Manufacturer
Saucony is among the most respected names in running shoes. They offer a wide range of running and walking shoes, each with the Saucony trademark fit, feel, and performance. They've spent years studying the biomechanics of top athletes because the goal is to develop creatively engineered systems that maximize your performance, allowing you to focus on the activity instead of the equipment. From studies have come many innovative Saucony concepts. Advanced technologies like Grid, the first sole-based stability and cushioning system, provide an advantage to athletes of all types.
Minimalistic style meets maximum performance in the Saucony® ProGrid™ Kinvara men's running shoe. It's crafted using lightweight air mesh and features an EVA+ midsole for optimal shock absorption on impact. The XT-900® outsole delivers durability and dependable traction.