6 oz /yd² 100% ring spun cotton 20 singles Graphite Heather is 50/50 cotton/polyester Sport Grey is 90/10 cotton/black polyester Made with our soft ring spun cotton Hammer& 39 s high stitch density fabric provides a heavier weight smooth printing surface Modern classic fit Classic width rib collar Taped neck and shoulders for comfort and durability Rib cuffs Side seams Tear away label Gildan partners with Better Cotton to improve cotton farming globally Made with OEKO TEX certified low impact dyes div div span style text decoration underline strong This product meets the following Sustainable Style subcategories /strong /span /div div br /div div Sustainable Manufacturing This product meets the OEKO TEX Standard 100 /div div br /div div Socially Conscious Manufacturing This product was made by a mill who partnered with Fair Labor Association and was made in a facility that is WRAP certified /div /div p br /p