I don't typically write reviews... but this jacket is near perfect for higher output activities. Fantastic balance of breathability/wind protection and on-the-go warmth. Great abrasion resistance as others have mentioned. Well thought out technical features for the alpine (hood system and chest pockets). Paired with a base layer, a light puffy, and a hard shell (for extreme conditions) you will have an ideal modular layering system for nearly any 3.5 season activity. This thing goes in my pack from fall until late spring. I find the sleeve length and overall fit as fantastic for climbing; a little surprised that several folks find fault here (I am a bit lanky < 6ft, 160lbs>, and wear medium in most garments). The ONLY drawback to this piece is its tendency to hold odors, more-so than any other synthetic I've owned. It gets smelly fast and stays that way until laundered.