This Rab waterproof/breathable rain pant is the least expensive model that we offer in the full side-zip rain pant category.  Feature packed and value oriented, this waterproof shell pant is great for basic mountaineering and all around use.  A big step above a more basic rain pant, these extremely lightweight fully separating side-zip rain shell pants offer a more supple 2.5 layer fabric for a great fit and feel. Full side zippers make it easy to take these pants off and on when wearing boots or crampons, and also serve as highly adjustable vents for temperature regulation.