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 67%, Polyester 33%; Model Information Navy Blue-NV135: Bust: 0 Height: 1.37 Hips: 0 Waist: 0; Model Size Navy-NV135: Age 7/8; Item Code: B2963A823WN;