Late fall and early spring days can pose quite a layering conundrum not quite cold enough for winter gear, but just a hair too chilly for exposed knees. Castelli makes those days easy with the Women's Bellissima Knickers. With classic Castelli style and comfortable functionality, these kinckers take the guesswork out of mildly chilly rides. The Bellissima's Invita Strong fabric features a downy soft finish with just the right amount of support and breathability for a comfortable ride. Castelli includes a Women's Kiss Air chamois, which strategically distributes padding for comfort, eliminates seams and chafing, and fights off stink producing bacteria. As a final touch, a bit of elastic with silicone grip at the knee keeps everything in place. Castelli's suggested temperature range for the Illumina is 68 to 78. 8 degrees Fahrenheit, but we find that the Bellissima can ride easily in temperatures ranging into the mid 50s.