2015 Sun Mountain Cumulus Pant Super lightweight, fully seam-sealed, waterproof and breathable, Cumulus is our most breathable rain pant. Incorporating 2.5 Layer Technology, the Cumulus has a woven shell with advanced DWR laminated to a waterproof, breathable membrane with a protective inner layer. Partial elastic waist with zipper fly and belt loops Snap system at hem shortens pants 2.5 inches Zippered hand-warmer and wallet pockets Deep lower leg zippers Compact folded size Two-year waterproof guarantee