The Patagonia Pluma PRO Bib Pant is built around a GORE-TEX ePE Pro 3-layer construction. The 80D recycled nylon face fabric and woven ripstop backer add durability across the shell. The PFC-free DWR finish keeps the face fabric shedding snow without the chemistry that lingers in watersheds. What Our Gearhead(R) Experts Are Saying:"The chest pocket sits clear of a harness waistbelt, so I can actually reach my skins or snacks mid-tour without unclipping anything. The full-length side zips open wide enough to vent hard on the climb and seal back down before the descent."