Boots go on cleanly over the Mons Royale Olympus Merino Base Layer 3/4 Legging, since the three-quarter length takes the bulk out from under them. Breathable panels sit in strategic spots across the slim merino base layer, and flatlocked seams keep chafe at bay. A touch of elastane adds stretch through the merino blend. What Our Gearhead(R) Experts Are Saying:"Through long days in boots, the merino held steady warmth while I moved and dried fast once I started sweating. The legging smelled clean when I reached for it the next day."