Little Seouls Boy Korean 100th Day Baek-il Celebration Onesie! Perfect for that special day to celebrate your baby's 100th day event! Baby clothing needs to be both durable and soft. With the infant fine jersey bodysuit, youths get just that. The fabric is 100% cotton for solid colors. For heather colors, polyester is included. There are seams along the sides of this product. All bindings are made with ribbed knitting for improved durability. There are plastic snaps at the cross closure for easy changing access.The infant long sleeve bodysuit does just that.