Nike Men's AW77 Track and Field Fly Crew Sweatshirt, Dark Grey Heather, Large Body: 100% cotton. Rib: 98% cotton/2% spandex. Imported Rib crew neck with interior taping for comfort and durability Superior French looped cotton that's soft and cozy, yet tough as nails A fit that holds its shape, from the body to rib cuffs and waistband Raglan sleeves for a natural feel Side zip with interior pocket for ventilation and storage