Smartwool Classic Thermal Merino long sleeve base layer

Smartwool Women´s Classic Thermal Merino 1/4 Zip Base Layer: Your Ultimate Cold Weather Foundation

When the temperature drops, your performance shouldn´t have to. Embrace the chill of any outdoor adventure with the Smartwool Women´s Classic Thermal Merino Long Sleeve Base Layer. Expertly engineered to be your first line of defense against the cold, this high-performance top combines exceptional warmth with unparalleled comfort, making it an essential piece of clothing for your active wardrobe. Designed specifically for the female form, it provides a flattering silhouette without sacrificing an ounce of technical capability.

As a cornerstone of our cold-weather collection, we are proud to introduce the latest evolution of this essential piece. We´ve updated the fit of our Women´s Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics.

As one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more.

Superior Warmth and Natural Performance

This thermal base layer is crafted from the finest wool, renowned for its incredible natural properties. It provides superior insulation to keep you warm in frigid conditions, yet it remains remarkably breathable. This intelligent thermoregulation means that as your body heats up during activity, the fabric works to move moisture vapor away from your skin, keeping you dry and preventing the post-activity chill. The natural odor-resistance of wool also ensures you stay fresh, even on multi-day excursions. Experience the soft, next-to-skin comfort that only this premium material can provide, without any of the itch associated with traditional wool.

Intelligent Design for the Active Woman

Every detail of this long sleeve top is designed with movement and comfort in mind. The updated women´s-specific slim fit contours to your body, allowing for effortless layering under mid-layers and shells while providing complete freedom of movement. The practical half zipper, or 1/4 zip, extends up to a protective high neck, allowing you to easily vent excess heat during a strenuous climb or zip up for full thermal protection against a biting wind. The back body seam is thoughtfully designed to wrap to the front, creating a body-enhancing fit that moves with you. This foundational T-shirts style top is the perfect starting point for any cold-weather layering system.

Technical Specifications:

* Fabric Weight: 250 g/m² (Midweight/Heavyweight Thermal)
* Neckline: High Neck with an 8" (20 cm) center front half zipper and semi-locking slider for versatile temperature control.
* Sleeves: Long Sleeve with set-in sleeve design.
* Category: Clothing
* Subcategory: Base Layers