I came across a lot of a lot of online sites with various informations and articles about your request and I found this one very interesting www.runnersworld.com.
Combat boots
The lightest running shoe in the world is the Nike ZoomX Vaporfly Next%. It is designed specifically for elite runners and features lightweight materials to enhance performance.
Weighing in at a phenomenally light 3.2 ounces (2.5 ounces for the womens model), the New Balance RC 5000 is the lightest running shoe on the market. Use it for track or speed workouts and for short-distance road races (up to 10K).
Addizeros
The lightest shoe is the AdiZero Crazy Light weighing 9.8 oz. It comes out June 3, 2011.
Combat boots
Derek Rose addidas
the adidas crazylight 2
The lighter the shoes the less weight on the runner's feet, allowing for faster running. Light running shoes are made by compacting less and less material and lighter material while still providing support.
Nike Matumbo spikes 3 ounces
Road Runner sports is the worlds largest running shoe retail store. Their best selling shoe is the ASICS GEL-Kayano 18. It retails for $149.95. Features include an Impact Guidance System, Guidance Line, Biomorphic Fit Upper, and Heel Clutching System
The lightest Jordan shoe is the Air Jordan 34, known for its innovative design using lightweight materials to reduce weight without sacrificing performance. Its streamlined construction and use of high-tech materials make it one of the lightest Jordan shoes in the lineup.