Details Marmot Men's Size Chart Meet the environmentally conscious and high-performing next generation of waterproofing: the lightweight PreCip Eco Full Zip Pant. The waterproof/breathable, PFC-free Marmot NanoPro™ recycled nylon face fabric lasts longer, thanks to the advanced technology of its microporous coating. Sturdier and more durable and with a patented dry-touch finish, these water-repelling pants will keep you comfortable and protected during planned treks in stormy weather and as a just-in-case piece in your pack for unexpected downpours. These water-repelling pants also feature fully taped seams to prevent leaks, full-length side zippers to allow quick and easy layering, and bonded storm flaps over the zippers to keep moisture out. Zippered hand pockets and a zippered back pocket provide quick storage while the elastic waist gives you a secure yet comfortable fit.