Ski tour through the backcountry or climb in the alpine with the ultralight Millet Women's LD LTK Activist 2. 5L Jacket. This 2. 5 layer jacket features a DryEdge All Weather laminate for highly rated waterproof, breathable protection, and fully taped seams enhance waterproofing by preventing snowflakes and raindrops from seeping through. Millet also equipped the LD LTK Activist with open Gill Vents under each arm for constant airflow, and flaps over the Gill Vents shield the interior from snow and rain. The adjustable hood works with the cuff thumbholes to ensure secure coverage.