It's the little things that make up the big ones. And we really need to sweat the details to make sure that we're taking care of the big picture. To us at Smartwool, the big picture is simple to identify — defeat climate change and make sure everyone has access to the outdoors. But it's the small choices we make every day that will make sure we get there. For us, it doesn't just start with our product, but with our community and our planet. That's why all of our Merino wool products — from hiking, running, and ski / snowboard socks to base layers, mid layers, outdoor apparel, and more — come with our guarantee to remain committed to environmental sustainability, racial equity, and inclusivity, plus frequent artist collabs to stay on the forefront of high quality, sustainable fashion. Once you experience our Merino wool, you'll realize that a better future is possible. Go far. Feel good.

• EVERYDAY BASE LAYER. Crafted from a soft merino wool blend, these boxer briefs keep you comfortable all day. Flatlock seams minimize chafing so you can go far and feel good whether tackling your to-do list or hitting the trails.
• SLIM FIT. Designed to meet the demands of outdoor adventuring, this slim fit base layer shows off a slimming silhouette while offering unrestricted movement through the waist and legs. Size medium inseam: 6"
• WHY MERINO WOOL? Thinner and softer than regular wool, it's easy to wear next to skin. Each fiber transports sweat away as a vapor, helps cancel out smells (we checked) and regulates body temperature, to keep you cool in summer and warm in winter.
• FUNCTIONAL FEATURES. Go far, feel good with thoughtful tech to keep you moving comfortably — a wide elastic waistband and a contoured pouch maximize comfort and support, while the flatlock seam construction minimizes chafing.
• GO FAR. FEEL GOOD. From wool socks to base layers for men, women and kids, we aim to provide the highest quality apparel for your outdoor adventures with a commitment to environmental sustainability, racial equity and inclusivity.