Meet the Smartwool Women’s Classic Thermal Merino Base Layer Colorblock Crew. This 100% Merino wool fan-favorite blends moisture management, temperature regulation, and odor resistance with the soft comfort of an interlock knit. Its updated colorblock design adds style while flatlock seams prevent chafing, and the slim fit moves with you for maximum comfort on every winter adventure—from skiing to hiking, climbing, or biking.

Why you’ll love it

• Slim fit designed to follow the body’s contours
• 100% Merino wool for warmth, breathability & odor resistance
• Interlock knit for comfort and soft next-to-skin feel
• Flatlock seams minimize chafing
• Raglan sleeves and side seams wrap to front for improved mobility