Boys' Nike Big Kid Sonic Fly Running Shoes Built for speed and comfort, this boys’ running shoe combines sporty design with everyday durability. The mesh upper lets feet breathe during active play, while synthetic overlays add structure and support where it counts. A soft cushioned midsole absorbs impact and helps energize every stride, and the full rubber outsole delivers steady grip from school hallways to weekend adventures. Designed with a traditional lace-up closure and padded collar, it’s ready for all-day action.