4.5 Oz., 100% Combed Ringspun Cotton Fine Jersey; Heather: 90% Combed Ringspun Cotton, 10% Polyester; White Is Sewn With 100% Cotton Thread; Rib Sleeve Cuff, Leg Cuff And Collar; Side Seam Construction; Cpsia Compliant Tracking Label In Side Seam; Easytear™ Label; Innovative Snap Tape Closure Now Made With 97% Post-Consumer Recycled Polyester.By Switching To Recycled Polyester Snap Tape, Lat Apparel Will Save Over 672,000 Plastic Bottles From Landfills Each Year