This jacket is clearly designed to hit the prerequisites for winter riding without added complications: windproof, warmly insulated, water repellent, breathable and with 360° reflectivity, along with CASTELLI’s functional attention to detail and fit. GORE-TEX INFINIUM™ WINDSTOPPER® X-Fast fabric with fleece liner for warmth. Allover protection with Thermoflex side panels for extra stretch and ventilation. YKK® Vislon® zipper for easy-sliding ventilation adjustment while riding.