Men's & Women's All-Season Base Layers
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Merino All Season Base Layer Collection
Explore the Classic All Season Base Layer collection, Smartwool's lightest and most versatile line of base layers, designed for comfort and performance across a range of temperatures and activities. Made with our signature Merino wool, the Merino apparel offers a soft, lightweight feel that’s perfect for layering or wearing on its own. Whether you're hiking, running, skiing, or just enjoying a day out, Merino keeps you comfortable and dry, no matter the conditions.
Our all season base layers are crafted with a blend of Merino wool and a nylon core for added durability without compromising softness. This unique construction ensures the garments retain their shape over time, providing long-lasting comfort and performance. Available in a variety of styles for men and women, the Merino collection caters to every body type and outdoor activity.
Each piece in the Merino All Season Base Layer collection is designed with flatlock seams to minimize chafing and maximize comfort. The lightweight fabric is naturally breathable and odor-resistant, making it ideal for high-intensity activities or layering in unpredictable weather. Whether you need a reliable base layer for your outdoor adventures or a versatile top for everyday wear, the Merino 150 collection has you covered.
At Smartwool, we are committed to sustainability and responsible sourcing. Our Merino wool is ethically sourced from sheep that are well cared for, and our products are crafted with environmentally friendly processes, ensuring that you can feel good about your gear.
Want to shop locally? Smartwool products are available at over 5,000 stores across the U.S. Use our Store Locator tool to find a location near you.
Merino All Season Base Layer Clothing FAQs
Q: What activities are best suited for the Merino All Season Base Layer collection?
A: The Merino All Season Base Layer collection is incredibly versatile and suitable for a wide range of activities. Its lightweight and breathable nature makes it perfect for high-intensity activities such as spring skiing, running, hiking, and biking. Additionally, it works well as a base layer under heavier clothing for cold-weather sports, or as a standalone piece in milder conditions.
Q: How does the nylon core in Merino 150 enhance the fabric’s durability?
A: The Merino 150 collection is made with a nylon core wrapped in Merino wool. This construction technique provides added durability and strength to the fabric, helping it withstand wear and tear while maintaining the softness and comfort of Merino wool against the skin. The result is a lightweight fabric that offers both performance and longevity.
Q: What is Merino 150 best suited for?
A: Merino 150 is Smartwool’s lightest fabric, making it perfect for warm-weather activities or as a versatile base layer in cooler conditions. It's ideal for hiking, running, and everyday wear, providing lightweight comfort and breathability.
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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