M's Zetto UL Jacket

Wore this on a windy ridge hike and it kept me warm without any bulk. The diamond quilting actually traps heat better than I expected for something this thin, and it stuffs into my pack's side pocket.

I was skeptical a jacket this light could keep me warm on chilly mornings, but the diamond quilting really does trap heat without any bulk. Slips into my pack’s side pocket so easily I forget it’s there until I need it.

Weighs nothing, but the diamond quilting traps heat way better than I expected from something this thin. Fits clean under a pack without bunching, and I've worn it almost daily since it arrived.