The Fondo Bib Knicker is the ideal choice for you who live in chilly areas and need all-day warmth. The Fondo family provides all the comfort and stylish appeal you expect from Castelli. Designed with Castelli Thermoflex fabric that gives a stretchy layer of cold-weather protection with a fleecy inside that traps a layer of warm air next to your skin. Features include: a Thermoflex fabric Kiss3 seat pad for all-day comfort and reflective zippers increasing visibility. Black.