Giordana Ceramic Base Layers have beneficial effects on circulation and well-being with their unique ceramic fibers and are true all-season garments because of the Resistex® Bioceramic technology.. Features + Benefits. Resistex® Bioceramic fabric technology. Beneficial effects on circulation and well-being. True all-season base layer. Made in Italy. Learn More. Everyday Essentials. True all-season garments, the ceramic benefits physical performance year-round.. Ceramic Technology. Made with Resistex® Bioceramic, a nylon/spandex/polyester microfiber material bonded to mineral bio-ceramic crystals. The benefits this delivers are derived from the Far Infrared Rays (FIR), an invisible segment of the light spectrum, that the Bioceramic emits.. Summer: The Bioceramic reflects the hot rays of the sun in summer creating a genuine barrier against heat in high temperatures. This unique technology helps lower the surface temperature of the fabric, keeping you cool and comfortable. The result is a considerable decrease in calorie consumption and therefore of the body\'s physical energy.. Winter: Resistex® Bioceramic also has high heat-insulating properties allowing body temperature to remain constant even in extremely cold conditions. Constructed from four panels to contour to the body, the spandex in the mix helps create a form-fitting garment.. Fit. Designed to fit close and contour perfectly to the body to deliver all the built-in benefits.