Winter weather can be challenging. Rain, wind, darkness and snow, this season subjects us to some of nature's most extreme conditions. The Attack Pro Fire Jacket is designed to take it all on. It's powered by Polartec Alpha. This unique synthetic insulation, which was originally designed for the military, offers breathability as well as warmth. They call it "active insulation" - the more you move, the harder it works - and it eliminates the need of shredding or adding layers while you're on the move. For when the forecast calls for rain, the jacket has a DWR (durable water repellent) coating to shed the water. And for trail-ready durability, the elbows feature Cordura panels for increased abrasion resistance. Advanced hybrid construction for cold weather riding Polartec Alpha Direct 90g temperature regulating and highly breathable insulation Lightweight Ripstop stretch nylon main body fabric C6 DWR treated for waterproof performance Softshell stretch side and underarm panels Cordura elbow panels for abrasion resistance Rider Attack Position patterning specific for MTB High-visibility reflective logos enhance visibility Front mesh lined chest pocket for storage Draw cord cinching at hem provide customized fit