95% Cotton, 5% Spandex Pull On closure SOFT COTTON MATERIAL: 95% Cotton 5% Spandex. Light weight kids long sleeve t-shirt top. It feels elastic, comfortable and soft. VARIOUS SIZES: We offer 5 different sizes(2T, 3T, 4T, 5T, 6T) now, and we will add more sizes for selection in the future, you will be able to select the right size for your kids. MACHINE WASHABLE: We have washed it several times, it is stable and will not fade or shrink. Machine washable. BASIC FEATURES: It is long sleeve with rainbow striped feature, o-neck, pull on closure. Will make it more vitality. DAILY USE: The tee top is suitable for 2-6 years old boys and girls, especially for halloween costume. Size 2T Advised Height 80-90cm/31-35inch,Weight 10-13kg/23-30pounds Size 3T Advised Height 90-100cm/35-39inch,Weight 13-15kg/30-33pounds Size 4T Advised Height 100-110cm/39-43inch,Weight 15-17kg/33-37pounds Size 5T Advised Height 110-120cm/43-47inch,Weight 17-21kg/37-46pounds Size 6T Advised Height 120-130cm/47-51inch,Weight 21-26kg/46-53pounds