5.3 oz., 100% cotton; Saftey Pink, Safety Green, Neon Green, Graphite Heather and; Heather Radiant Orchid are 50/50 Cotton/Polyester; Seamless double needle 7/8" collar; Taped neck and shoulders; Tear-away label ; Single needle left chest pocket; Double needle pocket, sleeve and bottom hems; Quarter-turned to eliminate center crease; Safety Green is Compliant with ANSI / ISEA 107 High Visibility Standards; Safety Green is 50/50 Blend