Mons Royale Olympus 3.0 Half Zip T-neck – Mens 20/21: Our warmest baselayer is a cold-weather classic. The slim fit 250 merino will keep you warm, while breathable mesh panels prevent you over heating.
- Mons 250 merino wool, our warmest baselayer weight
- Slim fit and raglan sleeves for ease of movement
- Merino mesh underarm panels
- Thumb loops to lock out the cold.