Women's NIKEA(R) METCON FLYKNIT 3 METALLIC :: Slip into something comfortable with the eye-catching Women's Nike Metcon Flyknit 3 Metallic training shoe. Breathe easy with the stretch-woven bootie and a new collar that's cozy to the max. Lightweight and durable your most demanding workouts deserve the most comfy Metcon yet - the Flyknit 3 Metallic.