The Castelli Superleggera W is a women-specific jacket with a fit tailored to suit the female physique. Lightweight, windproof, and water repellent- all of which describe the Castelli Superleggera W. The jacket is fabricated using Pertex Quantum fabric which keeps it airtight at the front and breathable through special vents in the back. The back panel is waterproof at the bottom of the jacket to prevent spray from getting in. The addition of the stretchable torrent fabric means the jacket has a sleek fit. For additional visibility, the jacket has reflective strips on the front and rear.