The invention relates to an elastic venous compression orthosis having a toppart and aleg part (13),the top part (18) and the leg part (13) having a top part knit thread and legpart knitthread, respectively, defining a network of knitted meshes, and a top partweft threadand leg part weft thread, respectively,the orthosis being characterized in that the top part has a reinforcementthread with anelongation at break, measured according to DIN 53834, of below 40% and alineardensity of over 30 dTex.