This shirt is inclusive of jerry's, shredders and leisure athletes, so get one. We’re not gonna beat around the bush, organic ring-spun cotton is where it’s at. So you’d better bite the bullet and try out this eco-friendly gem. • 100% organic cotton • Fabric weight: 5.3 Oz. • Single jersey • Medium fit American sizing system, so if you are ordering from outside the continental U.S. customers should order a size up.