Men's Base Layers

Livsn Men's Highlands Sweater Our Highlands Sweater is a quilted fleece mid-layer made with people and planet in mind. Using Polartec® Powerair™ fabric, the Highlands Sweater is designed to retain heat and prevent microfiber shedding. Relaxed...

Obermeyer Men's Lean Crop Baselayer Tight Pant The Lean Crop Baselayer tight is a 4-way stretch polyester material brushed on the inside for warmth and comfort. This is a great lightweight layer that will keep you dry and breathe well for on-mountain...

Polarmax Men's Max Ride Base Layer Crew Lightweight Performance First Layer - Relaxed Fitting. Designed to fit regularly for comfort and full range of motion. Neither snug nor loose. Allows for unrestricted movement. Ideal for temps 40°- 60°F...

Smartwool Men's Classic Thermal Merino Base-layer Bottom We've updated our Men's Classic Thermal Merino Base Layer Bottom to bring you a better fitting, more functional tight. The technical benefits of 100% Merino wool will help you keep your game at a...

Smartwool Men's Classic Thermal Merino Base Layer Crew  Meet the better-than-ever Men's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing...

Smartwool  Men's Intraknit Thermal Merino Base Layer 3/4 Bottom  Our Men's Intraknit™ Thermal Merino Base Layer 3/4 Bottom are the warm and winter-ready pants you need to perform all season. Our Merino Sport yarn combines the power of...

Smartwool  Men's Intraknit Thermal Merino Base-layer 3/4 Bottom Our Men's Intraknit™ Thermal Merino Base-layer 3/4 Bottom are the warm and winter-ready pants you need to perform all season. Our Merino Sport yarn combines the power of...

Smartwool  Men's Intraknit Thermal Merino Base-layer Color-block Crew Made with our innovative Intraknit™ technology, this men’s base layer crew is designed with color-block patterning for a distinctive look. It’s 3D-knit to...

Smartwool Men's Classic Thermal Merino Base-layer 3/4 Bottom  Keep your ski boots, hiking boots, and running shoes free of bulk and friction with our Men's Classic Thermal Merino Base Layer 3/4 Bottom. 100% responsibly sourced Merino wool provides...

Smartwool Men's Sparwood Half Zip Sweater In our Men's Sparwood Half Zip Sweater, it’s easy to zip up or down - depending on the weather - and enjoy every outing. This lightweight classic men's sweater is built with a single knit jersey and...

Smartwool Men's Classic All-Season Merino Base Layer 3/4 Bottom Whether you're taking on the Nordic trails or heading out for a cooler-weather hike, the Men's Classic All-Season Merino Base Layer 3/4 Bottom is perfect for year-round layering and...

Smartwool Men's Classic Thermal Merino Base Layer 1/4 Zip We've updated the fit of our Men's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and best base...