Nano-Air® Ultralight Pullover Women's

I’m always amazed by how much warmth this pullover packs for its weight—seriously, it’s barely there in my pack. The stretch fabric moves with me perfectly during my morning hikes.

Pulled this over my head on a damp, 40-degree hike and forgot I was wearing it—the stretch fabric moves like a second skin, and the whole thing stuffs into its own pocket without adding bulk. At 6 ounces, it's the only midlayer I grab for changing weather.

I've worn this on chilly morning bike commutes and barely noticed it was there, the stretch fabric moves so well with you. The 6-ounce weight is ridiculous for something that actually traps heat, and it packs down to nothing in a jersey pocket.