The Mammut Eiger Free Advanced HS Pant stays featherlight without giving up real durability on a serious backcountry mission. A 100% nylon face fabric shrugs off contact with rock and shrubs, while a GORE-TEX laminate seals out weather without trapping heat during a long skin track. Pre-shaped knee sections move through a scramble or an ice wall without binding, and full-length side zips dump heat fast when the climbing gets hard. What Our Gearhead(R) Experts Are Saying:"I brushed against loose rock scrambling up a ridge and expected a tear from a pant this light, but the fabric didn't give at all."