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Filament Beanie
The Filament Beanie is built with our 94% recycled Thermic™ S fleece. It has stripes of high and low lofting fleece inside, providing warmth in a low bulk and breathable package, ideal for high energy ascents. Close-fitting with minimised seams, it fits well under a climbing, skiing, or biking helmet, giving you an extra boost of warmth without the weight.