WHEN BREATHABILITY IS PARAMOUNT. If youre lucky enough to live in a place where winter isnt all that cold, this is your jacket. The Magia uses our WindstopperR X Fast 2 fabric to provide total wind protection on the front, sleeves and part of the back. Then we switch to our Warmer fabric on the back panel to keep you warm while wicking moisture away. This combination of windproof and permeable materials protects your body from the wind yet helps you avoid overheating. The YKKR camlock zipper stays flat while the zipper pull is down, and rear reflective tabs improve visibility on gray winter training rides.