Gr&ouml;do (Groedo) Organic Wool Cotton Baby Children Tights Made in Germany Machine washable 85 F degrees (30 C degrees) 75% virgin wool (the wool one gets from shearing a lamb for the first time), 23% organic cotton, 2% elasthane. Certified by GOTS (global organic textile standard) Made in Germany Size 1-2 years for height 92-98 cm (36-38.5 inches). Size 3-4 years for height 104-110 cm (41-43 inches). Size 5-6 years for height 116-122 cm (46-48 inch). Size 7-8 years for height 128-134 cm (50-53 inch). Size 9-10 years for height 140-146 cm (55-57 inch).