Be ready for the ballgame in our throwback Classic Safety Shirtz t-shirt. With a style that captures the nostalgic feeling of early Seattle baseball, this design is sure to make you stand out the next time a fly ball comes your way. 100% Preshrunk Cotton. Hi-Viz Three Striped Safety Shirts. Royal Blue Solid-Colored Garment. Bright Neon, Quality Florescent Inks. Double-Needle Stitching. Seamless Collar. Taped Shoulder-to-shoulder.