When air sharpens, focus meets the cold. The FuzzFleece™ AD Beanie for steadying the threshold. Adaptive warmth for movement through winter conditions. Vanishing in motion. ngineered with Polartec® Alpha® Direct, FuzzFleece™ AD is active insulation built for motion. Lofted fibers sit on a breathable mesh core, holding warmth without weight. Hydrophobic by design: it wicks, dries fast, and keeps insulating even when damp. Anti-chafe flat seam construction for comfort in motion. Exterior detachable care label. Nothing inside that shouldn’t be.