4.6 Oz., 100% Ring Spun Cotton (Solid Colors). 4.4 Oz., 80/20 Ring Spun Cotton/Polyester (Dark Grey Heather). Durable Rib Knit Crew Neck With Interior Taping. Heat Transfer Label For Tag-Free Comfort. Double-Needle Stitching Throughout. Contrast Heat Transfer Swoosh Design Trademark On Left Sleeve.