For quick-stowing waterproof protection that doesn't bog us down on the trail we reach for the highly breathable performance of the Marmot PreCip Eco Jacket. We throw on this comfortable shell when heading out on the trail in wet weather. Its microporous NanoPro membrane with microscopic densely-packed pores and a DWR finish keeps raindrops out while letting perspiration through. The DriClime mesh chin guard prevents moisture buildup from your warm moist breath and dripping sweat--moving it quickly away from your skin and drying quickly. Fully sealed seams ensure rain doesn't sneak through the cracks and we can batten down against the elements by pulling in the hood hem and cuffs. When we start getting steamy huffing up a hill we can unzip the underarm vents to let cool air in and pent-up heat escape.