Unisex F.B.I Zombie Outbreak Response Team Sweatshirt. Polycotton blend. Suitable for both adult men and ladies. 80% poly/cotton. Unisex style. SIZES; Small: Chest: 34″ – 36″ Medium: Chest: 38″ – 40″ Large: Chest: 42″ – 44″ Xtra Large: Chest: 46″ – 48″ XXL: Chest: 50″ – 52″