Description of Patagonia Stretch Velocity Zip-Neck Jacket - Men's:
Patagonia designed the versatile Men's Power Stretch Zip-Neck Jacket to function both as a base layer for skiing or mountaineering, and as a pullover for cold-weather running or cross-country skiing. The stretchy fleece gives you full mobility with next-to-skin comfort no matter where you use it. The quarter zip allows heat to escape on sweaty hill climbs, and the fleece's smooth face slides easily under layers.
Bottom Line: Stretchy and warm, for of all your winter pursuits.
Got this thing on s&c for next to nothing. One of my favorite purchases ever. I'm wearing it right now. I'm 6'4", 175, with huge gangly spider arms, and the large fits excellent, with great range of motion. Warm, stretchy, and (i'm told) stylish (I have all the fashion sense of a mossy rock). I lounge around the house, hike, climb, and hit up the bar in this thing. Zipper/Chin guard works great. No pockets... One chest pocket would have been nice. Also, great layering, the trim fit and smooth material make it comfortable under a shell. Couldn't be happier with it.
Note on the "pilling" issue- I've only had it about 6 months, but have yet to notice any pilling.