A4   4.0 oz., 100% Micro Poly Interlock 5-Star FabricSuperior moisture wicking for peak performanceUltra-tight knit for better opacity and printabilityStain release and odor resistant for easy careFade and snag resistant for durability44+ UPF for UV sun protectionReinforced shoulder seamsDouble needle cover stitch hemTransitioning to tag free neck