Washed only. Size 100 These pajamas feature designs of Miffy and her friends. Light pink and light gray feature Miffy, while beige features Boris. The soft-touch quilted material is gentle and moderately thick, providing excellent warmth. The bottoms have a bellyband, so you don't have to worry about getting cold while sleeping. There's a tag inside to write your name. [Recommended wearing season: Fall and Winter] [Transparency] Opaque [Fabric thickness] Normal [Elasticity] Yes [Lining] None [Pockets] None [Adjuster] None Material: Top and Bottom: Main Body: 60% Cotton, 40% Polyester; Ribbing: 57% Cotton, 38% Polyester, 5% Polyurethane; Top Patch: Synthetic Leather I washed them intending to use them, and I stamped my name on them, so I will cut off the bottom section of the two-line name tag.