Classic Thermal Merino Base Layer 1/4 Zip – Women's

Built for cold-weather trail runs and winter mountain days, this slim-fit quarter-zip is our pick for women who need a reliable merino base layer. Pure 100% merino wool regulates temperature and resists odor naturally, so you stay comfortable whether you're climbing or cooling down. The quarter-zip mock neck lets you dial in ventilation on the move.

• 100% merino wool construction naturally regulates body temperature and wicks moisture in cold, variable conditions
• Slim fit sits close to the skin for efficient layering under a shell or midlayer without bulk
• Quarter-zip mock neck gives you quick ventilation control during high-output efforts
• Merino's natural odor resistance keeps this wearable across multi-day trips without washing
• Available in colorblock patterns — Currant/Garden Pink, Black/Charcoal Heather, and Winter Sky/Chalk Violet Heather — in sizes XS through XL