NIKE® FREE x METCON :: Bring natural flex to your intense workouts with the new Men’s Nike Free x Metcon training shoes. From top to bottom, the Nike Free X Metcon is borderline flawless and can handle just about anything you throw at it. The Nike Free x Metcon Men’s Training Shoe combines the lightweight flexibility of Nike Free with the durability and stability of Nike Metcon shoes—which means it can stand up to short runs, boot camps, strength training, and the WOD. The upper section of the Free X Metcon’s is made with TPU-faced mesh. Thermoplastic polyurethane (TPU) belongs to a class of polyurethane plastics having many important properties such as elasticity, transparency, and resistance to grease, oil, and abrasion. It is unique due to its extremely flexible nature. With Nike Free X Metcon’s being structured with Flywire technology, it gives a dynamic fit that helps you lock your foot in place while allowing for natural movement.Pre-owned in VERY GOOD condition; light wear to midsoles and outsoles (as pictured)