The Adelante® Magnum high performance hemostatic valve introducer for large size vascular access, specifically designed and optimized for the introduction and placement of endovascular catheters, aortic valves, and stent graft systems. The Adelante® Magnum features a proprietary multilayer hydrophilic coated sheath, having a special designed distal tip portion to accept and tolerate the insertion and manipulation of large and complex devices.