DetailsMarmot Men's Size Chart Head for the hills and tackle the toughest trails in the packable, lightweight, and relaxed fit Men's Arch Rock Pants in short length. These breathable/quick-drying pants also feature a water-resistant DWR finish, so go ahead and leap over that creek. If the hike turns into a scramble, the stretch construction, inseam gusset, and abrasion-resistant fabric won't hold you back. UPF 50 sun protection helps block the sun's harmful rays. Stash extra gear in the side zipper pocket.