[Double-layered cotton material for a smooth feel and excellent opacity] This product uses a soft, double-layered cotton material. Compared to typical single-layered fabrics, it features a more delicate and high-quality texture. This double-layered structure makes it less see-through, so you can wear it with confidence even on its own. From the gentle warmth of spring to the cold air of winter, it gently protects your body temperature while being breathable, providing comfortable wear regardless of the season. It's a material you'll want to wear every day, combining the natural warmth of cotton with the supple ease of movement of a cut-and-sew garment.