Castelli constructed the Viziata Long Sleeve Jersey from its Warmer fabric. As its name suggests, the primary function of this material is to warm the body, and the Viziata does just that. Made from 100% polyester fibers, Warmer wicks away moisture from the skin while its fleecy inner-lining warms the layer of air between you and the jersey. The result is a highly-effective breathing insulation that keeps you warm and dry. For quick ventilation, the Free jersey features a full-length camlock zipper. Castelli also included three rear pockets and silicone grippers at the hem to prevent the jersey from riding up.
Castelli recommends this jersey for moderate, cold-weather conditions as low as 59 degrees Fahrenheit. For added visibility in low-light conditions, the Viziata also includes rear reflective tabs.