100% Cotton. The toddler pajamas is made of sweat-absorbing fabrics that is soft, breathable and flexible to protect your kid's sensitive skin, keep your boys comfort in the night. A pajamas top and pants with an elastic waistband ensure the toddler pajamas fit for your little one. The toddler boys pajamas with long-lasting and colorful pattern is good for sleep, pajamas party, also could be your boys' brithday gift. We provide the toddler pajamas for boys 2T, 3T, 4T and size 5-10. Machine washable, but hand wash is preferred for the cotton boys pjs. The toddler pajamas for boys with novelty design is made of 100% cotton. Suitable for sleep and party, also could be your boys' brithday gift.