Women's Intraknit Thermal Merino Base Layer Crew

Precision 3D-Knit Design. Dynamic Breathability & Core Warmth.

Engineered specifically for active winter pursuits, this high-performance crew delivers unrestricted four-way stretch mobility, targeted thermal regulation, and seamless chafe-free layering during strenuous backcountry tours and demanding resort laps. Utilizing advanced 3D-knitting technology, Smartwool seamlessly weaves insulating wool structures across the core and shoulders with breathable mesh panels under the arms and down the back, allowing your body to dump excess heat instantly during high-exertion efforts without catching cold drafts. 

• 3D-Knit Intraknit™ Construction: Integrates insulation, breathability, and articulation directly into the garment, reducing seams and optimizing weight-to-warmth ratio.

• Targeted Mesh Ventilation: Seamlessly engineered mesh zones under arms and along the back dump excess sweat and heat during high-output efforts.

• Merino & Synthetic Blend: Combines natural Merino temperature control and odour resistance with resilient synthetic yarns for rapid dry times and shape retention.

• Seamless Articulated Flex: Ribbed elbow and shoulder flex zones mimic natural body movement for uninhibited movement across all axes.

• Chafe-Eliminating Finish: Seamless construction minimizes friction against skin and pressure points under backpack or hydration straps.

• Next-To-Skin Performance Fit: Ergonomic silhouette sits flush against the body to optimize moisture transfer and fit smoothly under outerwear.

• Natural Odour Resistance: Pure Merino fibers naturally inhibit odour-causing bacteria for multi-day freshness on hut trips and travel itineraries.