Smartwool Men's Intraknit™ Thermal Max Merino 1/4 Zip

Next-to-skin warmth that works as hard as you do — built from Merino, engineered for the mountain.

The Smartwool Men's Intraknit™ Thermal Max Merino 1/4 Zip is a high-performance baselayer designed for cold-weather pursuits. Constructed with Smartwool's Intraknit™ technology, it features strategically placed thermal zones for targeted warmth and ventilation where you need it most. The natural Merino wool fibers regulate temperature, wick moisture, and resist odor — keeping you comfortable from the trailhead to the summit. This piece comes in a bold Orange colorway, adding a pop of visibility and style to your layering system.

Size: M
Color: Orange
Condition: Gently Used, Excellent Condition
Original Retail: $155.00

• Intraknit™ Technology: Engineered knit construction places thermal and mesh zones precisely where your body needs warmth or airflow.
• Merino Wool Fabric: Natural temperature regulation, moisture-wicking, and odor resistance for all-day comfort on the trail.
• 1/4 Zip Collar: Easy on-the-go ventilation and layering versatility for changing conditions.
• Flatlock Seams: Minimal bulk and chafe-free construction designed to move seamlessly under a shell or mid-layer.
• Thumbholes: Extended cuffs with thumbholes keep sleeves in place and hands warm during high-output activities.

Ideal for backcountry skiers, winter hikers, and cold-weather athletes who demand performance from every layer. Buying pre-owned means premium Merino quality at a fraction of the retail price — without compromising on warmth or function. Pair it under a hardshell for summit days or wear it solo on brisk shoulder-season runs.