The ARCTERYX Aptin Zip Hoody is a great all round lightweight hoody. It is great for trail running or any activity that is highly aerobic. The Polartec Power Dry is amazing material that works to keep you warm on cold morning runs, and helps pull moisture off of you and drys quickly when things get too hot. A woven polyester overlay adds wind and weather protection during cold weather training sessions. Don't miss out on this special piece of apparel.