Black Diamond M Fineline Stretch Full Zip Pants

Lightweight packable waterproof rain pants for mountain runners, ski tourers, and alpinists who need storm protection that moves with the body and stores in a jacket pocket, the Men's Fineline Stretch Full Zip Pants from Black Diamond use BD.dry 2.5L construction in 110gsm 100% nylon with a 10,000mm waterproof and 10,000g/m²/24hr breathability rating. The 2.5L construction bonds a microporous waterproof membrane directly to the 110gsm nylon face fabric with a half-layer interior print, removing the full lining to cut weight while maintaining full waterproof and breathable performance. Full-length leg zips with DWR-treated zipper tape allow the pants to go on over boots and crampons without removing footwear, and a snap-bottom hem with internal drawcord provides a customizable ankle seal against wind and driving rain. At 277g with 10,000mm waterproof protection in BD.dry 2.5L stretch nylon, the Fineline Stretch Full Zip is the correct storm pant for fast-moving mountain days where a heavier waterproof pant would slow transitions and burn energy on the climb.