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Light, warm, highly versatile insulation performs as a standalone and midlayer. Atom Series: Synthetic insulated midlayers. Midlayer or standalone, the Atom Vest is a proven performer across a range of...

Made for cold days and mixed output activities, the women's Arc'teryx Kyanite base layer bottoms provide freedom of movement and have a soft, brushed interior that traps heat to keep...

Light, versatile stretch fleece pullover with exceptional next-to-skin comfort. A light layer for cool conditions – or high output in colder weather – the packable, comfortable Kyanite Lightweight Zip Neck...

First-layer shirt for high-output activities in cool conditions. *The Taema Thermal Crew Neck Shirt LS was previously the Motus Crew Neck Shirt LS. Designed for comfort in motion, this is...