When our days start on cool trailheads and stretch into breezy ridgelines, the Backcountry Highliner PrimaLoft Air-Perm Fleece Crew is the layer we trust to keep us moving comfortably. Built for high-output adventures but polished enough for everyday wear, it transitions seamlessly from steep hikes to post-adventure hangs. With its clean crewneck design and lightweight feel, it earns a permanent spot in our packs without adding excessive weight or taking up too much space. Powered by PrimaLoft Active Evolve fleece, this crew regulates temperature as our effort changes, managing moisture while staying soft against the skin. Stretch construction and an active fit let us move freely on scrambles and climbs, while integrated thumbholes add coverage when the wind picks up. Best of all, it stows into a hidden pocket for easy packing when conditions warm up, making it a reliable midlayer for travel, trail, and everything in between.