The Mission Alpine Pant is built for alpine climbers, ice climbers, and mountaineers pushing the limits.The BD.dry (TM) hydrophobic membrane provides ultimate protection from wet climates while a SpectraA(R) ripstop delivers durability and toughness in high-wear areas. When the objective puts you in extreme conditions, the Mission Alpine Pant is built to protect you from the elements. Designed in our ethos of 'Apparel as Equipment,&'; for when your gear needs to perform as hard as you do, the Mission Alpine pants feature articulated seat and knees for increased range of motion, zippered cuff expansion letting you customize the fit to any boot, and YKKA(R) AquagaurdA(R) zippers throughout.