Donna Merino 260 ZoneKnit™ Manica Lunga Termica Crewe

After a cold morning run I could barely feel the chill on my torso, even with the wind picking up—the ZoneKnit mesh panels let me ditch my outer shell and not get clammy. The wool is dense but not itchy against my skin, and it held its shape all day without sagging.

I was skeptical about a heavyweight merino top for running, but the ZoneKnit™ panels actually keep me from overheating while still feeling cozy on cold mornings. It fits perfectly without being too tight, and the fabric hasn't irritated my skin at all after several washes.

The mesh panels under the arms really let me breathe during a tough hike without feeling clammy. The wool is thick enough to keep me warm at the summit but didn’t make me overheat on the climb up. Fit is snug but not restrictive.