Officially licensed Don Clemente Loteria Mexicana original artwork. women men kids baby onesie toddler classic All the components used in our products are certified STANDARD 100 by OEKO-TEX. That means that the ink, fibers, labels and fasteners have been rigorously tested for safety and environmently impact. Test criteria and limit values in many cases go far beyond applicable national and international standards. Please check our size chart above for product measurements.