4.2 oz./yd², 65/35 Polyester/Cotton, FLEX Poplin ; 4.7 oz./yd², 100% Polyester, Cooling Mesh; FLEX Wrinkle Resistant Moisture-Wicking Stain Release finish; Inner mesh banded collar with sewn in stays; Hex chest pockets with pencil stall; Industrial Laundry, Home Wash; Regular sizes available under style LL51