The 100% organic cotton openwork knit double-breasted bodysuit is very original, this material is exclusively made by Graine d'Amour. This organic bodysuit is unisex. For birth and 1 month sizes, this bodysuit is tied with a lace to dress baby gently. There is no seam on the inside and the volume of the sleeves is expanded to facilitate the passage of baby's hands. Every time you dress your baby you will take care of his skin! This bodysuit is 100% GOTS certified organic cotton.