Kid-Friendly Reebok CrossFit Nano 7 - Grade School Training Shoes in Primal Red / Black / White. CrossFitters come in all shapes, sizes, and ages, and now Reebok Nano 7.0 does, too. This kid-friendly takedown of Reebok box-ready Nano comes stacked with the same technology Reebok elite athletes love. The NanoWeave upper maintains airflow, and a molded midsole. Materials: NanoWeave upper for lightweight comfort and breathability. Low-cut design for freedom of motion and quicker transitions. Best for: CrossFit workouts, active days, athletic looks. CMEVA midsole cushions and absorbs shock with every step. High abrasion, multisurface rubber outsole delivers traction. Forefoot flex grooves increase flexibility. Molded sockliner delivers comfort and an external heel counter locks in the fit. Color: Primal Red / Black / White.