4.13 oz./yd², 100% soft polyester moisture-management/antimicrobial performance fabric Superior interlock fabric for comfort Self-fabric collar Badger sport paneled shoulder for maximum movement Double-needle hem with tack Side seams UVA and UVB sun protection in areas covered by the shirt (UPF 50+) Badger heat-seal logo on left sleeve This 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.