Our children's underwear is machine washable and retains its vibrant colors wash after wash. With a shrinkage rate of less than 3%, it outperforms typical pure cotton underwear that shrinks by over 10%. The innovative M-shaped ventilation holes in the gusset enhance airflow and tackle discomfort and humidity, improving breathability by 50% to keep her feeling dry and fresh all day long. Crafted with 40-count yarn, which is finer than the typical 32-count yarn many brands use by 8 hanks of 840 yards, our fabric is softer and more comfortable for everyday wear. Our tagless underwear features a unique water-based printing technique that eliminates raised areas from traditional heat transfers, reducing skin friction for a softer and more comfortable fit. The finest long-staple cotton with an average fiber length of at least 35mm is used. Our careful combing process removes impurities, reducing pilling and giving her a cleaner, smoother fabric. This product is girls' underwear, made of 96% Cotton + 4% Elastane. It is suitable for children's daily wear and is comfortable and breathable.