Giro Women's Neo Rain Jacket Closeout. Polartec NeoShell is the most breathable waterproof fabric made, which is why it's the perfect material to construct the Giro Women's Neo Rain Jacket. Venture out into inclement weather with the utmost confidence as the jacket is completely waterproof, windproof, as well as breathable. The Women's Neo rain jacket is tailored for riding without looking like a typical cycling jacket, and includes Giro's Stowback rear storage system with a pair of internal pockets accessed via a pair of vertical, rear zippers. So not only do you get all of the style and versatility you need, but there's no clamminess that's the reality of traditional rain gear.