Burton Women's [ak] Helium Grid Fleece Quater-Zip True Black 2026Feel the difference. The women's Burton [ak] Helium Grid Fleece Quarter Zip brings breathable warmth to just about any cold weather activity. It's a mid layer. It's a base layer. It's a riding layer that manages sweat and comfort through changing temps and extended efforts with a knack for staying dry and smelling fresh. Features: Slim Fit Slim fit sits close to the body, with room for the shirt to move with you. Built in Climate Control. The Living