Midweight Women's Vertex Leggings are made for active sports in cold weather. Using our soft, warm 260gm merino jersey fabric, Icebreaker built them for movement, using a gusset for mobility and soft, brushed waistband. The fabric is warm yet breathable, and resists odor naturally, so the Vertex Leggings are great as a cold weather running tight or skiing baselayer, and you can wear them several times between washing. Weight: 260 Midweight Fabric: 100% Merino wool Fit: Regular Best for: Outdoor & Hiking, Snow Sports Benefits: Warmth, Breathability, sport versatility, odor resistance. Features: Gusset for comfort and mobility, flatlock seams prevent chafing