The Alpha 90 1/4-Zip Hoodie is Sambob's midweight fleece layer, made from Polartec® Alpha Direct at 90 gsm. The 1/4-zip adds ventilation for high-output days, paired with elastic sleeve cuffs and a drawstring hood. Breathable and quick-drying, it works as an active layer for hikes, runs, and climbs, or as a mid-layer under a shell when it's colder.