Designed for little scientists, this “boy's double set” offers both comfort and the spirit of discovery! The upper part is made of cotton combed fabric; Thanks to its soft texture, it breathes and provides freedom of movement all day long. The fun "I'M GENIUS" print on it reflects the energy and intelligence-filled world of children who are curious about science. The bottom shorts are made of durable gabardine cotton fabric. It is perfect for adventurous running games, cycling tours and park exploration. Standing out with its functional design, the shorts have a cargo pocket and two side pockets. So kids can carry their most precious little treasures—stones, leaves, small toys—with them… So they can collect their adventures! As Denokids, we know that children grow up with colors and fun characters and "Let children wear their dreams!" we say. All Denokids products are manufactured to the highest Child Safety Standards. Each product is passed through a metal detector one by one to detect needle breaks that may occur during the production phase. Top: 95% Cotton 5% Elastane, Bottom: 98% Cotton 2% Polyester