8.5 oz., 65% cotton, 25% recycled polyester, 10% polyester; Oatmeal Hthr, Heather Grey and Charcoal Hthr are 60% cotton, 30% recycled polyester, 10% polyester; Polyester fiber in this blend is made from recycled content including plastic bottles. ; Recycled poly helps reduce water usage, energy consumption and CO2 emissions when producing this garment.; Ribbed neck, cuff and hem; Retail fit; Side-seamed; Tear away label; 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;