The Giordana Body Clone FormaRed Carbon Leg Warmers have extensive paneling so they won't feel like they're tugging your knees straight or slipping down while pedaling. And since they're part of the FormaRed Carbon line, you also get comfy, soft Aerofix grippers at the top, with Liquid Elastic providing a nice hold on your skin. At the bottom, there's a zipper, and separate panel that allows for both great hold and ankle flex. Both ends have a scalloped shape for comfort and fit. There is a second reason for all the paneling. Compression, which gives better muscle support, which delays fatigue, which allows you to ride harder longer which leaves a smile on your face for greater intervals. The paneling follows the contours of your muscles, allowing them to move, but also holding the muscles in place, which reduces the likelihood of muscle swelling from use. Giordana will probably tell you there's a third as well. The more a wicking material contacts the skin, the better it wicks. Take a top that's loose. Where the skin isn't in contact with material, sweat sits, keeping you feeling damp. Put a wicking layer next to that skin, and the skin stays feeling dry for longer. Super Roubaix is a brushed nylon/spandex fabric that is smooth on the outside and lofty on the inside. The panels are held together by flat-panel stitching, so no seam can abrade your leg. There is a left and right, and are marked by reflective Giordana logos. These go on the outside of your calves. There is reflective piping around the zipper, which has a cam lock design on the pull.