Castelli delivers with the updated Aria Shell Jacket — an all-day wind shell that makes you feel proud to battle the elements. Traditionally, weather shells and styling have shared a confusing, if not tumultuous relationship. Oversized and unsightly, the jackets of old flap about in the wind, and sport decidedly non-aerodynamic cavernous folds that make it seem like they are emergency donations from gracious road-side spectators. In the Aria you'll find a supportive dance partner that protects and conforms regardless of how harshly the wind blows. Sculpted perfectly to road-racing positions on the hoods and in the drops, the Aria's mesh panels move with you and maintain a next-to-skin feel, keeping the wind deflected without flapping or increasing drag. The ultralight windproof woven microfiber on the front of the Aria is ideal for rides ranging from 50-65 degrees F, and also provides ease of compact, pocket-storing in case the ride eventually warms.