Men's Base Layer Tops
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Men’s Merino Wool Base Layer Tops
Explore our versatile collection of men's base layer tops, designed to provide unparalleled comfort and performance across all your adventures. Our selection, crafted from the finest Merino wool, offers the perfect blend of warmth, breathability, and softness, ensuring you're prepared for any activity, any time of the year.
From the Intraknit Active Base Layer Crew for easy temperature regulation during high-intensity activities, to the cozy and versatile Classic All-Season Merino Base Layer 1/4 Zip, our tops are designed to keep you comfortable and moving freely. For added protection and warmth, the Classic Thermal Merino Base Layer Hoodie is an essential piece in any layering system.
For those seeking versatility, our Classic All-Season Merino Base Layer Long Sleeve is the ultimate year-round companion, providing lightweight insulation that adapts to your body's needs. Discover why our collection is often regarded as the best Merino wool base layers tops, combining the natural technical advantages of Merino wool with modern design and sustainability.
Want to shop locally? Smartwool is sold across 5,000+ stores in the U.S. Find one near you with our Store Locator tool.
Men’s Merino Wool Base Layer Tops FAQs
Q: What is a base layer top?
A: A base layer top is a foundational garment designed to be worn next to the skin, optimizing moisture management, warmth, and comfort in various conditions. It's essential for layering in outdoor activities.
Q: How should a base layer top fit?
A: A base layer top should fit snugly without restricting movement, acting as a second skin to efficiently manage moisture and maintain body temperature. It should not be too tight or too loose.
Q: Do you wear a shirt under a base layer?
A: Typically, you don't wear a shirt under a base layer top as it's designed to be the first layer in contact with your skin. Adding a layer underneath can hinder quick drying properties and thermal efficiency.
Your complete guide to Merino wool.
Naturally versatile, renewable, and totally comfortable. Learn more about Merino wool and all the benefits that come with wearing it for all your outdoor pursuits.
How to wash Merino wool.
We love Merino wool for its natural odor-resisting and moisture-managing abilities. Whether we’re running, biking, hiking trails, hunting, and skiing or snowboarding, Smartwool socks, base layers, and apparel help us keep us comfy and dry all day long.
Smartwool Size Chart
We want you to be 100% satisfied and comfortable with your Smartwool purchase. Our sock, clothing, and accessories size charts are specifically designed to help you find the best fit for men’s, women’s, and kids’ Smartwool products.
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