The Tech 260 Thermal Leggings by Icebreaker are the midweight version of the Oasis Leggings. They're the perfect base layer for colder days on the mountain or on your local trails. They're 100% merino wool and have flatlocked seams, which make them super comfy, warm, breathable and naturally odor resistant. They're also gusseted which allows all you ladies to keep up with your funky moves on the slopes or at the crag mid-winter. Icebreaker Women's Merino 260 Tech Thermal Leggings