Castelli Women’s Tutto Nano ROS Jersey

First thing you'll notice when you pull the Women's Tutto Nano on is the snug stretch fit. This is thanks to the highly flexible Nano Flex 3G fabric, as found in Castelli's superb Sorpasso tights. This close fit not only saves precious energy but less flapping boosts warmth too. Speaking of warmth, the fleece inner is great at trapping body heat and the tighter knit of the fabric lets less air through than traditional thermal jersey fabrics, enhancing warmth still further.
Next comes Castelli’s proprietary nanotechnology water-repellent finish. When you're cycling in the dry you'll not notice it. However, on a damp and drizzly autumn day, it comes into its own, fending off light rain and wet roads, keeping you comfortable for longer. Spring and autumn days are shorter and so you'll also be pleased to find 360° reflectivity, keeping you visible as the night draws in. An easy-sliding KK® Vislon® zipper with rubberized pull and the silicone gripper elastic finish the jersey in style.
If you're looking to upgrade your cool-weather cycling kit, the Women's Tutto Nano ROS Jersey is a great place to start. Compared to a traditional thermal jersey it's a definite step up in performance.