The Smartwool Women's Intraknit Thermal Merino Base Layer Pants are built for performance in the coldest and most demanding conditions. Designed with 3D-knit technology, these pants provide a tailored fit that moves with the body for unrestricted comfort and mobility. Strategic mesh ventilation zones increase breathability while maintaining warmth where it matters most. Featuring Merino Sport yarn, they combine the softness and natural benefits of Merino wool with the durability and quick-drying properties of polyester. Whether skiing, running, or training outdoors, these pants deliver the perfect balance of insulation, flexibility, and comfort to keep you performing at your best.