Classic Thermal Merino Base Layer Bottom – Women's

Built for cold-weather output on the trail or in camp, this merino base layer bottom is our pick for plus-size athletes who need warmth that actually moves with them. Thermal interlock merino wool regulates temperature and wicks moisture without synthetic cling, so you stay dry whether you're pushing hard or standing still. Flatlock seams and a plus-specific cut mean no bunching, no chafing, and real coverage where it matters.

• Thermal-weight merino wool delivers natural warmth, moisture management, and odor resistance — no synthetic stink after a long day out
• Interlock knit construction adds durability and a soft, next-to-skin feel that holds up through repeated layering and washing
• Plus-specific fit engineered for improved coverage, mobility, and waistband comfort — not just a scaled-up standard pattern
• Flatlock seam construction sits flat against the skin to eliminate chafing under hiking pants, ski bibs, or hunting layers
• Available in 1X–4X in Black, Charcoal Heather, Twilight Blue Heather, and Dark Teal Heather — versatile enough to layer from the trailhead to the lodge