These Youth Boys' Marvel  Avengers Sneaker in sleek black and silver feature 75% synthetic polyurethane and 25% woven polyester upper for durability and breathability. It features an adjustable hook-and-loop elastic strap closure for a secure, easy fit and a round toe design that allows natural movement. The shoe is lined with 100% textile mesh polyester on the lining and footbed, ensuring comfort and airflow, while the 100% thermoplastic rubber outsole provides excellent traction and long-lasting wear.