HELLY HANSEN LIFALOFT AIR INSULATOR JACKET

It doesn’t feel like much, but packs a whole lot of protection. The Insulator Jacket is essentially a wind shell with a layer of LifaLoft Air, a new lightweight insulation that looks like a perforated sheet of fleece. The structure creates lots of dead air, the essence of any good insulation, and pulls moisture away from the skin to disperse, keeping us feeling warm, too. More protective than the Rab, but not quite as warm, it’s a good choice for the weight conscious. 410 grams. $350; hellyhansen.com

Choose it: For fast-moving touring sessions.