The Mountain Hardwear Power Stretch Suit is an expedition weight baselayer is designed to take the rigors of alpine climbing and high altitude mountaineering. Polartec Power Stretch provides exceptional moisture management and our overlaid seat and knees protect from the cold and wet. 6-slider rear zip provides uncomplicated access. Mountain Hardwear Powerstretch Suit Features: 6-slider watertight rainbow rear-zip for quick changes Flat lock construction Gusseted crotch for mobility High moisture management Spandura-overlay on seat and knees Two-way front zipper Zip chest pocket Materials: Body: Polartec Power Stretch Weight: 454 g (1 lb)