On milder winter days, you're out on your favourite trail, moving at speed with the wind in your face. The Mens Caribou Crossing Altis Jacket from Jack Wolfskin is a good jacket for conditions like these, as it has a windproof front. This jacket combines two materials to deliver optimum warmth and functionality. It consists primarily of double-layered, very warm knitted fleece. The front of the jacket features a warm synthetic fibre insulation, packed inside a windproof fabric. The jacket is equipped with a system zip, so it can be used as a warm mid layer under your hardshell. So you get double the warmth and feel-good wear all day long. The jacket is also breathable. And if the weather turns bad, simply zip it into your hardshell.