The Nike Boys' Free 5. 0 Running Shoe took the innovative technology trusted by casual running enthusiasts and professional marathoners alike and downsized it to offer the same comfort and performance to your kid. It has an innovative design that offers incredible flexibility and cushioning while promoting a natural stride. The breathable mesh upper helps him stay cool when he's playing or practicing in summer, and the lightweight Phylite midsole offers a cushy, bouncy feel that puts some extra spring in his step. Hexagonal flex grooves in the outsole allow his foot to move more naturally in every direction, resulting in a barefoot like feel, and the rounded heel rolls with the ground to encourage a natural stride.