Breathable. Supportive. Nike Flyknit technology uses high-strength fibers to create lightweight uppers with targeted areas of support, stretch and breathability.

On their website, Nike provides a simple definition of their Flyknit technology as 'a material made up of strong yet lightweight strands of yarn that have been woven into a one-piece upper, securing an athlete's foot to the shoe platform'.

Nike Flyknit for Running Breathable construction and targeted support help you tackle your longest distance.

I knocked the FlyKnit Shields down a point because they aren't fully waterproof, but otherwise they're stellar. You don't want to take them on the trail, but they're perfect for the street.