THERMAL GRIZZLY Women's Thermal Sweater Smartwool Merino Black Base Layer Top

Cold-weather pursuits demand a base layer that delivers warmth without the risk of overheating. The THERMAL GRIZZLY Women's Thermal Sweater Smartwool Merino Black meets that challenge with 100% ZQ-certified Merino wool in a midweight 250 g/m² interlock knit. It naturally regulates temperature and wicks moisture, keeping you dry and comfortable whether you're skiing, snowboarding, hiking, or simply braving a chilly day. The slim fit and crew neck create a sleek silhouette that layers effortlessly under outerwear, while flatlock seams prevent chafing during high-output movement.

Who is it for

Active women who need reliable warmth and breathability in cold conditions. From carving down slopes to trekking through snow or layering for a winter run, this base layer keeps you dry and comfortable all day long.

Main features

• 100% Merino wool: naturally soft, non-itchy, and odor-resistant
• Midweight 250 g/m² fabric: ideal balance of warmth and breathability
• Moisture wicking and fast drying: pulls sweat away from skin to keep you dry
• Temperature regulation: adapts to your body heat for consistent comfort
• Flatlock seams: reduce friction and irritation during movement
• Slim fit with crew neck and long sleeves: layers easily under outerwear
• ZQ-certified Merino: sustainable and ethically sourced wool

Specifications

• Product type: Base layer top
• Gender: Women's
• Material: 100% Merino wool
• Fabric weight: 250 g/m² (midweight)
• Fit: Slim
• Neckline: Crew neck
• Sleeve length: Long sleeve
• Color: Black
• Construction: Interlock knit
• Seam construction: Flatlock seams
• Odor resistance: Natural
• Moisture wicking: Yes
• Temperature regulation: Yes
• Breathability: High
• Comfort features: Soft, non-itchy feel
• Sustainability certification: ZQ-certified Merino wool
• Care instructions: Machine wash cold, gentle cycle, lay flat to dry
• Intended use: Skiing, snowboarding, hiking, cold weather activities

Tips

To extend the life of your Merino base layer, wash it inside out in cold water with a gentle detergent and avoid fabric softeners, which can coat the fibers and reduce their natural performance. Lay flat to dry away from direct heat or sunlight.