4.13 oz./yd, 100% polyester moisture-management/antimicrobial performance fabricSuper soft interlock fabric for comfortSelf-fabric collar with 8″ locking zipperContrast collar, zipper, sport shoulder, and sleevesBadger sport paneled shoulder for maximum movementDouble-needle hemmed bottomUPF 50+ sun protection from UVA and UVBBadger heat-seal logo on left sleeveThis product meets the following Sustainable Style subcategory:Socially Conscious Manufacturing: This product was made in a facility that has partnered with or is accredited by the Fair Labor Association.