When you hit the mountain you need pants that look good and will keep you warm. A full 100% polyester performance shell is rated at 10k mm waterproofing and 15k breathability and fully taped seams keeps the moisture out. Inner thigh vents with zips shed excess heat, and assist with thermal regulation. The front and back pockets have zippers to secure you belongings, and these pant attach to a snap storm skirt of a compatible jacket.