Smartwool Classic All-Season Merino Base Layer Top 1/4 Zip Black Men's M

The Smartwool Classic All-Season Merino Base Layer Top with 1/4 zip delivers exceptional temperature regulation and moisture management for high-output activities in any season. Crafted from a premium blend of 88% ZQ-certified Merino wool and 12% nylon, this men's base layer top combines natural odor resistance with durable performance. The slim fit and Smoothlock™ flatlock seams ensure a chafe-free, next-to-skin comfort, while the 6.5-inch center front zipper allows quick ventilation when you heat up.

Advantages

Merino wool naturally regulates body temperature, keeping you warm in cool conditions and cool when it's warm. The fabric's moisture-wicking properties pull sweat away from the skin, and its high breathability prevents overheating. Core Spun Technology wraps Merino wool around a nylon core for added strength without sacrificing softness. The quarter-zip design offers adjustable airflow, and the flatlock seams eliminate irritation during movement.

Suitable for

• Hiking and backpacking in variable weather
• Running and cycling as a lightweight base layer
• Skiing and snowboarding under a shell
• Everyday wear during transitional seasons
• Travel due to odor resistance and quick drying

Key specifications

• Material: 88% Merino Wool, 12% Nylon
• Fabric weight: 150 g/m²
• Fit: Slim Fit
• Neckline: Quarter-zip with 6.5" (16.5 cm) center front zipper
• Sleeve: Long sleeve
• Seams: Smoothlock™ flatlock seams
• Technology: Core Spun Technology for durability
• Moisture management: Moisture-wicking and fast drying
• Odor control: Natural odor resistance
• Temperature regulation: Yes
• Breathability: High
• Wool certification: ZQ-certified Merino wool
• Garment type: Base layer top
• Color: Black
• Size: M
• Seasonality: All-season

Recommendations

For optimal performance, layer this top under a midlayer or shell in cold weather, or wear it alone during high-exertion activities in mild temperatures. Machine wash cold on gentle cycle and lay flat to dry to maintain the integrity of the Merino wool.