Nike on Twitter: "@CapricornColey Great question, Nichole. FITSOLE is a specific type of footwear insert that provides optimal cushion and support for running. Let us know if we can help with anything
Nike Fitsole
Nike Fitsole fit cushioning support pink insole of multi-color design Nike Tailwind 6 from 2013 Stock Photo - Alamy
Nike | Shoes | Nike Fit Sole Cushion Support Flex 23 | Poshmark