The importance of a high-performing first layer as part of your mountaineering layering system can never be underestimated. And the Dot Fleece is the perfect example. Featuring our new Dot Fleece fabric technology, that pulls moisture from the skin and expels it to the outside, it works hard to keep sweat at bay and that means it’ll keep you warm. Underarm gusseting ensures a full range of motion and thumbholes come in handy when layering up. Summit Series™ layers all work together for optimum performance in terms of breathability, insulation, weather resistance and moisture management.