evo.com | Mons Royale Long Underwear Bottoms > The Mons Royale Olympus Merino Base Layer Leggings serve as a top-tier choice for frigid days spent in the mountains. This midweight 250gsm merino blend provides excellent warmth and moisture management while featuring targeted mesh panels to keep things breathable during high-output adventures. Flatlocked Seams to Prevent Friction Merino Mesh Panels Behind the Knee 97% Merino Wool, 3% Elastane Full-Length Base Layer Legging Slim Fit | Women's Mons Royale Olympus Base Layer Leggings 2027 - X-Small Purple | Wool/Elastane