Patagonia today announced the breakthrough Nano-Air™ Hoody and Jacket with FullRange™ insulation – creating an entirely new kind of insulating garment for Fall 2014 that's unlike anything ever seen before. Offering excellent temperature regulation and four-way mechanical stretch, the Nano-Air Jacket can be worn continuously during aerobic, stop-start activities in the mountains, and mitigates the need to adjust layers when the body heats up.
Read more at http://www.ukclimbing.com/gear/news.php?id=6639