Sean John Men's Big-Tall Challenger Zip Jacket and Pant Set, Obsidian, 3XL 70% Cotton/30% Polyester Imported Machine Wash Classic Sean John track jacket and pant set. Birdseye knit fabric with solid poly pique taping across the chest and back of the jacket. Ribbed cuff and waistband of jacket Pant has poly pique taping down side seams of both legs. Yarn dyed, flat knit ribbed waistband with hidden draw cords. Pant cuff has elasticated bottom with zipper and self fab gusset