Ideal over a t-shirt on cool runs or under your ski jacket on deep winter days, the Women's Atom Long Sleeve Zip is a full-zip midlayer hoodie with style. The Atom features Icebreaker's Real Fleece fabric, which uses nylon core fibers wrapped in Merino & then brushed, providing more warmth with less weight. Zipped hand pockets & a welded zipped sleeve pocket store cash, a ski pass & other small essential items, while the form-fitting hood adds warmth over a beanie or under a ski helmet. The thumbhole cuffs make for easy layering & add a touch of hand protection on cool-weather trail outings.