9 oz./yd² (US), 15 oz./L yd (CA), 50/50 cotton/polyester Light Steel is 50/40/10 cotton/polyester/black polyester Silver Grey is 50/48/2 cotton/polyester/black polyester The polyester content is currently transitioning to CiCLO® polyester Durable coverstitching throughout Heavy ribbed knit waistband and cuffs Set-in sleeves "C" logo on left sleeve This product meets the following Sustainable Style subcategories - Sustainable Manufacturing - This product was made in a facility that is run by at least 50% renewable energySocially Conscious Manufacturing - This product was made in a facility that utilizes the Higg Index and has implemented Level 2 practices or above, and was made by a mill that has partnered with or is accredited by the Fair Labor Association Champion Men's Powerblend Crewneck Sweatshirt