It is made of sweatshirt fabric. DeFacto Boys' Regular Fit Crew Neck Sweatshirt, which offers both an elegant and a sporty design, with a graphic printed front and back parts integrated with the fabric, a crew neck, a regular fit comfortable pattern, and flexible ribbing at the sleeves and hem. Cotton 41%, Elastane 1%, Viscose 3%, Polyester 55%; Model Information Grey-GR210: Bust: 0 Height: 1.37 Hips: 0 Waist: 0; Model Size Grey-GR210: Age 8/9; Item Code: B3897A823WN;