R1 Air Zip Neck Sweater – Women's

When the temperature drops on a morning trail run or a cool-weather hike, the R1 Air Zip Neck is our pick for active women who run warm. Its open-knit air construction moves heat and moisture out fast, so you stay regulated without overheating. The zip neck lets you vent or seal up on the fly.

• Open-knit grid fleece construction dumps heat and moisture faster than traditional midlayers — built for high-output activity
• Zip neck collar gives you quick ventilation control when the trail heats up or temps swing
• Trim, athletic fit layers cleanly under a shell or runs solo on milder days without adding bulk
• Ideal for trail running, fast hiking, and cool-weather aerobic efforts where a standard fleece would leave you drenched
• Available in Black and Wool White — two clean colorways that work as a baselayer or standalone piece