Coreline AR Baselayer Bottom Merino - Men's

Pure merino. Zero nonsense. The Coreline AR Baselayer Bottom is built for next-to-skin performance when temps swing and output stays high. Thin knit. Fast dry. Odor doesn’t stand a chance. 

This is your first layer. It sets the tone for the entire kit.

Key Features

• 100% merino wool construction—no blends, no fillers

• Lightweight knit for high breathability and four-season range

• Natural odor resistance for multi-day use

• Moisture-wicking fibers move sweat fast

• Quick-drying for stop-start output

• Next-to-skin athletic fit for clean layering

• Flat, low-bulk seams reduce friction under shells and pants

Recommended Use

Pull these on for cold mornings, long days, and variable output—ski laps, cold hikes, camp setup, or work outside when weather doesn’t quit. Built to run solo or stack under softshells and hardshells without bunching.

They shine when you’re moving, sweating, stopping, then moving again.

Bottom Line

Lightweight merino that works as hard as you do—day after day.