Men's Baselayers

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      23 products
      Best Seller
      A man models a super soft, long sleeved merino wool thermal base layer crew. This top makes for a perfect first layer on a winter hike, or a nice casual wear on the chilly days of autumn and spring. #color_burgundy
      A man models a super soft, long sleeved merino wool thermal base layer crew. This top makes for a perfect first layer on a winter hike, or a nice casual wear on the chilly days of autumn and spring. #color_burgundy

      Midweight

      Men's Thermal Base Layer Crew

      100% Merino Wool

      from $79.99
      Best Seller
      Minus33 Merino Wool Clothing Kancamagus Men's Midweight Wool Bottom
      Minus33 Merino Wool Clothing Kancamagus Men's Midweight Wool Bottom

      Midweight

      Men's Base Layer Bottom

      100% Merino Wool

      from $79.99
      A man models a super soft, short sleeved merino wool thermal base layer crew. Use it as a base layer under your work shirt, or wear it all by itself during your next summer summit. #color_black
      A man models a super soft, short sleeved merino wool thermal base layer crew. Use it as a base layer under your work shirt, or wear it all by itself during your next summer summit. #color_black

      Lightweight

      Algonquin Men's T-Shirt Crew

      100% Merino Wool

      from $69.99
      XS to 4X
      navy blue mens base layer bottoms
      mens expedition weight thermal bottoms navy blue

      Heavyweight

      Katmai Men's Bottom

      100% Merino Wool

      from $139.99
      XS to 4X
      A man models a super soft, long sleeved merino wool thermal base layer crew. Whether you're wielding an ice axe on a near-vertical ice sheet or taking the dog for a walk on a cold afternoon this garment will perform to your satisfaction. #color_navy
      A man models a super soft, long sleeved merino wool thermal base layer crew. Whether you're wielding an ice axe on a near-vertical ice sheet or taking the dog for a walk on a cold afternoon this garment will perform to your satisfaction. #color_navy

      Heavyweight

      Yukon Men's Crew

      100% Merino Wool

      from $139.99
      Best Seller
      A man models the lightweight long sleeved merino wool base layer crew neck top #color_olive-drab-green
      A man models the lightweight long sleeved merino wool base layer crew neck top #color_olive-drab-green

      Light­weight

      Men's Merino Wool Crew

      100% Merino Wool

      from $74.99
      A man models the microweight merino wool raglan t-shirt, your perfect choice for hitting the gym or setting foot on the trails. Raglan sleeves and side panels create a garment that moves with you #color_slate-blue
      A man models the microweight merino wool raglan t-shirt, your perfect choice for hitting the gym or setting foot on the trails. Raglan sleeves and side panels create a garment that moves with you #color_slate-blue

      Microweight

      Men's Wool Raglan T-Shirt

      Woolverino

      $69.99
      Best Seller
      Minus33 Merino Wool Clothing Saratoga Men's Lightweight Wool Bottom
      Lightweight - Saratoga Men's Bottom 100% Merino Wool - Minus33 Merino Wool Clothing

      Lightweight

      Saratoga Men's Bottom

      100% Merino Wool

      from $74.99
      100% Merino Wool Kinsman Turtleneck - Midweight. Did you know that in the UK a turtleneck is called a polo neck? And in Australia and New Zealand, it’s called a Skivvy? We say, call it whatever you want, but make sure you have one! Great for skiing, hunting, fishing, hiking, or just plain old taking your dog for a walk. You’ll grow to love this Merino turtleneck when you need a little extra something to keep your neck warm.
      100% Merino Wool Kinsman Turtleneck - Midweight

      Midweight

      Kinsman Turtleneck

      100% Merino Wool

      $99.99
      100% Merino Wool Rogers Mock Neck - Midweight. When a full turtleneck is too much, this Rogers Mock Neck will still keep you warm and comfortable. The Rogers is a favorite of law enforcement, so you know it gets the job done. The 100% Australian Merino Wool is soft next to the skin and makes a great base layer, or can be worn by itself when you attend your next stylish dinner party. #color_navy
      100% Merino Wool Rogers Mock Neck - Midweight #color_navy

      Midweight

      Rogers Mock Neck

      100% Merino Wool

      $89.99
      Minus33 Merino Wool Clothing Chugach Men's Expedition Zip-Off 3/4 Bottoms
      Minus33 Merino Wool Clothing Chugach Men's Expedition Zip-Off 3/4 Bottoms

      Midweight

      Men's Flyless Running Tight

      Woolverino

      from $69.99
      100% Merino Wool Tecumseh Men's 3/4 Bottom - Midweight. As a ski or snowboard enthusiast, you know you don’t want bulk. That’s why we designed these 3/4 bottoms specifically to be worn with ski or snowboard boots. Pair them up with our Merino Ski and Snowboard Sock and you will be warm, comfortable, and bulk-free!
      100% Merino Wool Tecumseh Men's 3/4 Bottom - Midweight

      Midweight

      Tecumseh Men's 3/4 Bottom

      Woolverino

      $74.99
      Midweight - Men's Long Sleeve Button Up 100% Merino Wool. Our best-selling Midweight fabric now as a long-sleeve henley. midlayer #color_navy
      Midweight - Men's Long Sleeve Button Up 100% Merino Wool. Our best-selling Midweight fabric now as a long-sleeve henley. midlayer #color_navy

      Midweight

      Men's Long Sleeve Henley

      100% Merino Wool

      $99.99
      Minus33 Merino Wool Clothing Woolverino Men's Micro Wool Sleeveless. When the heat sets in, stay cool with our Woolverino Micro Sleeveless. The range of movement you expect from a sleeveless combined with the extreme moisture-wicking power of Merino Wool will keep you going even when the elements try to stand in your way.
      Minus33 Merino Wool Clothing Woolverino Men's Micro Wool Sleeveless

      Microweight

      Men's Wool Sleeveless Tank Top

      Woolverino

      $64.99
      Updated

      Microweight

      Men's Polo

      Woolverino

      $74.99
      Sale
      100% Merino Wool Sentinel Men's S/S Crew - Midweight. The Sentinel is a one of a kind Men's Midweight Short Sleeve Tee. This Merino Wool Tee will insulate and stand guard over your body's core. Use this tee as a base layer during the early morning or as a lone t-shirt when the sun hits you after the summit. The natural odor resistance ability of Merino Wool will allow you and your friends to enjoy the ride home.
      Minus33 Merino Wool Clothing Sentinel Men's Midweight Wool S/S Crew

      Midweight

      Sentinel Men's S/S Crew

      100% Merino Wool

      $75.99 $64.99 Save $11.00
      Sale
      male model wearing midweight woolverino long sleeve crew. The Woolverino Midweight Crew gives you a slim-fitting top that moves with you. Yoked shoulders, side panels, and thumbholes keep your top in place. Our Woolverino core-spun blend adds extra durability while the amazing insulating power of merino wool keeps you warm and comfortable.
      Minus33 Merino Wool Clothing Woolverino Men's Midweight L/S Crew

      Midweight

      Men's Wool Long Sleeve Crew

      Woolverino

      $84.99 $69.99 Save $15.00

      Microweight

      Men's Wool V-Neck T-Shirt

      Woolverino

      $69.99
      Minus33 Merino Wool Clothing Midweight Wool Union Suit. The Union Suit is a historical undergarment that has been around since 1868. The Union Suit was first created in Utica, NY. Our Union Suit features a drawstring waist, plastic buttons on the top half, and flat snaps on the bottom half.
      Minus33 Merino Wool Clothing Midweight Wool Union Suit

      Midweight

      Union Suit

      100% Merino Wool

      $169.99
      Sale
      Minus33 Merino Wool Clothing Ticonderoga Men's Lightweight Wool Crew
      Minus33 Merino Wool Clothing Ticonderoga Men's Lightweight Wool Crew

      Lightweight

      Ticonderoga Men's Crew

      100% Merino Wool

      $74.99 $69.99 Save $5.00
      Midweight - Men's Long Sleeve V-Neck 100% Merino Wool.  This timeless classic is now available in merino wool. Wear it alone, or layer it under everything - from your fleece pullover on a hike, or a button-up at the office. You'll be warm, cozy, and dry all day with pieces in your wardrobe. The V-cut gives you just enough coverage without exposing your underlayer. #color_forest-green
      Midweight - Men's Long Sleeve V-Neck 100% Merino Wool #color_forest-green

      Midweight

      Men's Long Sleeve V-Neck

      100% Merino Wool

      $99.99
      Sale
      Minus33 Merino Wool Clothing Kearsarge Lightweight Wool Polo
      Minus33 Merino Wool Clothing Kearsarge Lightweight Wool Polo

      Lightweight

      Kearsarge Polo

      100% Merino Wool

      $74.99 $59.99 Save $15.00
      Sale
      Minus33 Merino Wool Clothing Algonquin Men's Lightweight Wool S/S Crew

      Lightweight

      Algonquin Men's T-Shirt Crew

      Clearance

      $65.99 $59.99 Save $6.00