Yelete Kids Children's Opaque Solid Colored Tights Composition : White Body - 80% Cotton, 17% Polyester, 3% Spandex Composition : Color Body - 80% Acrylic, 17% Polyester, 3% Spandex X-Small fits 2-3years. Package shows XS (0-12months) Small fits 3-5years. Package shows S (1-3years) Medium fits 6-9years. Package shows M (4-6years)