A range of hooded synthetic insulated jackets available now. Some, like the popular Arc'teryx Atom, are lighter weight and ideal for wearing on the move or for belaying in warmer temperatures. Others are heavier and more suitable as cold weather 'belay jackets', such as Patagonia's well-known Das Parka.
Read more at http://www.ukclimbing.com/gear/news.php?id=5232