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

Built for plus-size athletes who push hard in cold weather, the Classic Thermal Merino Base Layer 1/4 Zip Plus is our top pick for winter hiking, skiing, and backcountry days. ZQ-certified 100% merino wool in a heavyweight interlock knit delivers serious warmth without the itch, while the 8-inch zip lets you vent fast on the climb.

• 100% ZQ-certified merino wool in a heavyweight interlock knit — warm, breathable, and naturally odor-resistant for multi-day winter use
• 8-inch center-front zipper gives you quick, on-the-fly ventilation during hard efforts and full coverage when temps drop
• Plus-size specific pattern is cut for proportional movement and layering — no binding, no bunching under a shell
• Offset shoulder seams eliminate pack and hydration vest strap pressure during long winter approaches or resort days
• Flatlock seam construction sits flat against skin in all the right places, keeping chafe out of the picture on high-output days