Smartwool | Classic Thermal Merino Base Layer Crew | Women's | Purple Iris Heather mid-distance The innovative support system includes

The innovative support system includes an EVA Film that offers inherent stability from the bottom of your foot

19% Elastane

With durable leather construction and comfort-first features like an ergonomic

Built to last with the highest quality materials

asymmetric rib knit in hemline

Smartwool | Classic Thermal Merino Base Layer Crew | Women's | Purple Iris Heather mid-distance The innovative support system includesMeet the new and improved Women's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan favorite with new color options and an enhanced fit to improve functionality while elevating aesthetics. The addition of shoulder panels and its flatlock seam construction helps prevent chafing and increases your comfort level. Add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next