To achieve the elasticity, it adds a percentage of elastin (spandex) stretch cotton; This is a resistant, and recover the original shape, unlike the tissues where they yield over time The fabric has the strictest certification OEKO-TEX 100 standard Class I, and it is for babies and children up to 4 years of age Velour Fabric Two Sides Are Different; One Hand, the outside has an incredible feel and extremely soft; the inside, on the other hand, is finished to hold the baby and it does not slide when carried It has adopted a compromise on the density of the fabric, so that they may not be too thick for the summer or too thin, so as not to give proper support to baby International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.