Pro Club Men's Heavyweight 13oz Crew Neck Fleece Pullover Sweatshirt 60% cotton 13oz 60% Cotton 40% Polyester Famous for its premium thickness and weight Relaxed fit for superior comfort Rib collar, cuffs, and waistband made with Lycra for comfort and long wear Double-needle cover, seamed neck, armholes, and waistband 13oz Pro Club Comfort Crew Neck Sweatshirt is heavier than the 9oz version