From New Balance, the Boys' FuelCell Play V1 Bungee Top Strap Sneakers feature: Synthetic and mesh upper Tactical and durable upper, with a strap inspired by sport Bungee lace for easy on/off Synthetic lining Toe Protect technology helps protect feet from rocks, roots and debris FuelCell midsole foam with approximately 3% bio-based content delivers a propulsive feel to help drive you forward. Bio-based content is made from renewable resources to help reduce our carbon footprint Full rubber outsole with heel kick and sidewall wrap to assist with grip FuelCell With BIO EVA Imported.