You wouldn't usually give your casual winter layering much thought, but cycling during the cool months of the year requires some extra planning. The Giordana G Shield Arm Warmers are a smart alternative to too-heavy jackets or jerseys that don't adequately defend against winter weather. These arm warmers feature Giordana's Super Roubaix fabric that consists of a soft and stretchy material, complete with inner loft that's both warm and breathable. To assure a comfortable fit, Giordana used contoured panels and minimal seams throughout the arms to promote a barely-there fit and feel. Meanwhile, Aqua ZeroEco treatment provides a water-resistant touch, and a single seam construction bolsters your defense against moisture.