De Marchi Phantom Vest. For those days when it's awesome to feel the wind whistling through your spokes but not on your chest, the De Marchi Phantom Vest provides ideal relief. Made from a super lightweight nylon, the Phantom vest is perfect for spring and summer riding. Completely windproof as well as being water resistant, the vest can also be folded up tightly enough that you can carry it in a Cycling Jersey pocket and pull it out as weather conditions dictate. There's a single zippered rear pocket accessed from the left side that extends about 13 of the way across your lower back perfect for small stowables such as nutrition items. Side panel vents keep you cool during hard efforts while the broad elastic waist ensures the vest remains perfectly placed.