The Free RN Flyknit 3.0 NRG 'Medium Tangerine' was released in May 2019 to follow up the original spring launch with updated summer colors. This addition to the Nike Free collection goes laceless with a slip-on design made of lightweight yet durable yarns and breathable Flyknit fabric. Boasting 37 percent more flexibility than the previous iteration, it reinforces the barefoot-like sensation with less midsole material and a shaped outsole construction.