Made of cotton, soft and breathable, harmless to kids' skin.Suitable for baby from 0 to 4 years old wear in summer.Cute bow tie short sleeve cotton t-shirt, with elastic waist print shorts, stylish and cool, your kids will like it.Great for casual, daily-life, outdoor, photo-shoot and so on in summer. Both machine wash and hand wash are availablePlease Refer to the Size Chart in product description before purchase