O-neck Long sleeves. Comfortable waistband Ribbed legs Soft and breathable fabric textureThis product contains 100 Cotton. The cotton fabric of this long-sleeved, ribbed pajamas set gives the body a soft and smooth feel. It makes children feel comfortable and free all day long. Cotton is a natural fiber. Made of pure cellulose. Cellulose is an organic substance that is synthesized in nature. It has low elasticity. Care instructions Hand wash at a maximum of 30C. Do not tumble dry. Do not use bleach.