Adizero Feather – $140
Targeted at fast, biomechanically efficient runners, the Adizero Feather combines shockingly low weight with a plush yet responsive ride. Glued overlays on the upper add structure without increasing weight, while the highly sculpted midsole and outsole further minimize weight and provide the cushioning required by fast runners. Adidas’s adds structure to this lightweight shoe with its new Sprintframe chassis, a thin yet flexible polymer sheet that’s placed between the midsole and the upper. Perhaps not ideal as a daily trainer, the Adizero Feather is a great shoe for racing or fast training.