1. The signature colorful prints of Kari Traa’s Rose hoody and pants transform the Norwegian brand’s soft and stretchy, Merino wool base layers way beyond humble long johns. $100–$120, Ute Mountaineer, karitraa.com2. Arc’teryx didn’t miss a detail in its women’s backcountry Shaska bib, including a beacon pocket, easy-access side zip, breathable fabric up top, and cuffs that integrate your boots’ power straps. $499, Ute Mountaineer, arcteryx.com3.