Tee made of 65% Cotton & 35% Acrylic and is flame resistant. Pant made of 50% Cotton, 45% Acrylic & 5% Nylon and is flame resistant. Super soft tee includes screen print shark. Loose fitting pant includes functional fly and elastic drawstring waistband. Sizes run as follows (height): Size 2 (32-34"), Size 3 (34-35"), Size 4 (36-38"), Size 5 (39-40"), Size 6 (41-43"), Size 7 (44-46"), Size 8 (47-49"), Size 10 (50-52"), Size 12 (53-56"), Size 14 (57-60")