The FlowNit BIOSEAL vascular grafts are manufactured using the most modern knitting technique and feature high burst strength and low dilatation. The use of a specially texturized yarn supports superior tissue incorporation and healing characteristics. Because of the aldehyde- and isocyanate-free BIOSEAL impregnation, the grafts are primarily blood-tight and are characterized by extraordinarily soft and pliable handling. The concentric crimping and a guideline enable for safe and exact positioning at the surgical site. The FlowNit BIOSEAL vascular grafts are available as straight tubes in diameters of 6 to 24 mm and lengths of 15 to 100 cm as well as a bifurcation in proximal diameters of 12 to 24, distal diameters of 6 to 12 mm in a length of 45 cm.