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
Running Shoes. Nike.com
NIKE FITSOLE 2 WOMEN'S SIZE 8 SHOES | eBay
Best 25+ Deals for Nike Running Shoes Fitsole | Poshmark