Mons Royale Olympus 3.0 Long-Sleeve Top - Men's Black/9 Iron II, M

Mons Royale's warmest baselayer, the Olympus 3. 0 Long-Sleeve Top blends insulation with breathability to maintain a comfortable temperature and moisture level during our winter pursuits. The 250-weight merino wool is the classic midweight weave, keeping us just warm enough in cold conditions while minimizing sweat and wicking it away to keep us as dry as possible under our heavier winter layers.