The Sfida 2 Jersey uses an engineered 3D thermal fabric that provides extra warmth and a unique cross-dyed colour effect. The jersey closes with YKK® Vislon® zipper that is easy sliding so it can be opened with one hand, even on the move. Castelli’s Zen collar design protects your neck from the top of the zip. 3 rear pockets with a reflective strip provide storage whilst also aiding visibility in low light.