A4 Big Boys' Camo Performance Interlock T-Shirt 100% Polyester Machine wash cold with like colors. do not bleach. tumble dry low. do not iron. Hem is double needle cover stitched for durability Micro poly interlock Superior moisture wicking for peak performance Ultra-tight knit for better opacity and printability Stain release and odor resistant for easy care Fade and snag resistant for durability 30+ upf for uv protection Double needle cover stitched for durability. Shoulder seams are reinforced