"What Our Gearhead® Experts Are Saying: ""These are my go-to base layer bottoms for skiing. They’re warm where I need them, ventilated where I run hot, and the slim fit doesn’t bunch under ski boots. They feel like they were built to move with you."" When the intensity ramps up in cold conditions, we need base layers that work as hard as we do. The Smartwool Intraknit Merino Thermal Legging uses advanced 3D knitting to seamlessly blend insulation, articulation, and ventilation in one slim, body-hugging fit. The result is warmth where we need it, breathability where we want it, and unrestricted mobility on every stride, kick, or turn. Merino Sport yarn combines the softness, odor resistance, and thermoregulation of Merino wool with the durability and fast dry times of polyester. Strategically knit mesh ventilation zones keep us dry and comfortable during high-output pursuits, making these leggings an essential for skiing, running, and winter training. With a mid-rise waist and 31-inch inseam, they’re built to fit and flex like a second skin."

Key Specifications