Gr&ouml;do (Groedo) Organic Cotton Womens Knee High Socks (1 Pair) Made in Germany Machine washable 85 F degrees (30 C degrees). 98% organic cotton, 2% elasthane. Certified by GOTS (Global Organic Textile Standard). Made in Germany. Size EU 35- fits US women 5-8. Size EU 39-42 fits US women 8 1/2-10.