6.5 oz./yd²., 100% USA grown cotton preshrunk jersey, 16 singles; Heather Grey: 90/10 cotton/polyester; Generous fit; Set-in 1x1 rib collar; Self-fabric shoulder to shoulder neck tap; Ribbed cuffs; Tear away label; U.S. Grown Cotton, produced using best practices to conserve resources, protect soil, and promote biodiversity.; Threadfast is a proud member of the Better Cotton Initiative (BCI). Cotton products from Threadfast support more sustainable cotton farming. Better Cotton is sourced via a system of mass balance.; Every Threadfast product contributes to the Plant with Threadfast program.; ;