The Arenite is warm and versatile. Designed as a cold weather midlayer, it’s constructed from a unique fleece, Cobblecomb™, that has a lofty backer that provides efficient insulation, and a durable twill face that resists pilling and reduces friction and binding under a shell. Combining the warmth and moisture wicking properties of polyester with the stretch performance of elastane fibers, Cobblecomb™ delivers effective thermal regulation with freedom of movement.SIMPLICITY in DESIGNDesigning for versatility without compromising a minimalist approach is a difficult task. Focused on intended use, the jacket’s feature are purpose-driven and lean. The taller collar has a snug but not binding fit that seals out drafts and layers easily under a shell. The full length front zipper makes it easy to get on and off, and can be unzipped with a single hand for immediate ventilation. Two hand pockets stow essentials.FIT to MOVECommitted to freedom of movement, the Athletic fit keeps the Arenite close to the body, yet still leaves room for multiple light layers. Articulation and anatomic patterning combine with gusseting under the arms to provide exceptional ergonomic performance. When worn under an Arc’teryx shell, the fit and articulation align to help create an entire system designed to move with the body.