Sizes S/M and L/XL: OEKO-TEX(R) MADE IN GREEN: produced sustainably and tested against 1000+ substances. #M21LFB665 OETI Sizes Kids 4-7 and Kids 10-12: OEKO-TEX(R) MADE IN GREEN: produced sustainably and tested against 1000+ substances. #M24LDREY4 OETI