This is Smartwool's women's Classic Thermal Merino Base Layer Crew, updated with an enhanced fit, shoulder panels and raglan sleeves. GearJunkie named it Best Overall Base Layers for Women for 2025 to 2026, and it's 100% merino wool in Smartwool's warmest Classic weight.
A warm merino crew is the first layer we recommend for winter, and this one has earned its reputation.
Skiing, winter hiking and cold weather layering. Ready for storm days at Monarch Mountain.
