The Castelli Mortirolo VI Jacket is designed for mild winters and riders who find they overheat in thicker winter jackets. The front and sleeves of the Mortirolo is made from GORE-TEX INFINIUM WINDSTOPPER X-Fast fabric for warm insulation and protection from the wind. The back of the jacket forgoes the wind stopping membrane for greater breathability, letting sweat and excessive heat easily escape. For most riders, winter is about clocking up miles and staying as comfortable as possible. Because of this the Mortirolo is cut to a more accommodating non-race fit. Key Features GORE-TEX INFINIUM WINDSTOPPER X-Fast fabric with fleece liner in main body Embossed contrasting panel across chest Warmer back allows heat and moisture to escape Reflective panel below pockets for maximum visibility 3 rear pockets YKK Vislon zipper Non-race fit 6 14C / 43 57F Weight: 377g (Large)