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Outside- Prima Fusion

November 1, 2010

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Outside- Prima Fusion

Smart Insulator
Sierra Designs Prima Fusion

The Prima Fusion is an insulated hardshell with a few key differences.  First, it's insulated only in strategic areas along the chest, back, shoulders, and tops of the arms.  The uninsulated sides, helmet-compatible hood, elbows, and pit-zip-equipped underarms make it significantly more breathable.  Second, the outer fabric is cut from a heavier-weight nylon making it considerably more abrasion-resistant.

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