Men's Baselayers

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      29 products
      XS to 6X
      100% Merino Wool Chocorua Men's Crew - Midweight
      Midweight - Chocorua Men's Crew 100% Merino Wool - Minus33 Merino Wool Clothing

      Midweight

      Men's Thermal Base Layer Crew

      100% Merino Wool

      from $79.99
      XS to 6X
      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
      Mens Wool Tee Shirt - 100% Merino Crew. Use it as a base layer on a chilly morning or wear it all by itself during your next summer summit. Soft, no stank, and versatile, you won’t believe how often you’ll be reaching for it. Perfect as you transition through different temperatures.
      Minus33 Merino Wool Clothing Algonquin Men's Lightweight Wool S/S Crew

      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
      Minus33 Merino Wool Clothing Yukon Men's Expedition Wool Crew. The Yukon is a 400 g/m2 Crew Neck designed to keep in body heat and be super comfortable as a base layer. The fine micron 100% Australian Merino Wool garments will rapidly wick away moisture during periods of high activity while preventing heat loss during inactive times. This piece is designed to be one of the warmest layering tops you will find.
      Expedition - Yukon Men's Crew 100% Merino Wool - Minus33 Merino Wool Clothing

      Heavyweight

      Yukon Men's Crew

      100% Merino Wool

      from $139.99
      XS to 3X

      Midweight

      Isolation Men's 1/4 Zip

      100% Merino Wool

      from $99.99
      XS to 3X

      Lightweight

      Ticonderoga Men's Crew

      100% Merino Wool

      from $74.99
      Minus33 Merino Wool Clothing Woolverino Men's Micro Weight T-Shirt. The Woolverino Men's Micro T-Shirt is great as a base or solo layer, whether you're hitting the gym or setting foot on the trails. Raglan sleeves and side panels create a garment that moves with you.
      Minus33 Merino Wool Clothing Woolverino Men's Micro Weight T-Shirt

      Microweight

      Men's Wool Raglan T-Shirt

      Woolverino

      $69.99
      XS to 3X
      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
      Woolverino Men's Wool Boxer Briefs - Micro Weight. With our new Micro Weight Woolverino fabric, your favorite boxers just got an upgrade. Improved fit, enhanced durability, and the same Merino Wool feel you've grown to love. The wolverine is out of the bag. Run for a pair while you can.
      Woolverino Men's Wool Boxer Briefs - Micro Weight

      Microweight

      Men's Wool Boxer Briefs

      Woolverino

      $44.99
      Woolverino Women's Wool 1/4 Zip Sun Hoodie - Micro Weight

      Microweight

      Men's Wool 1/4 Zip Sun Hoodie

      Woolverino

      $109.99
      Minus33 Merino Wool Clothing Woolverino Men's Micro Weight Wool Brief

      Microweight

      Men's Wool Briefs

      Woolverino

      $34.99
      Minus33 Merino Wool Clothing Woolverino Men's Micro Weight Wool Boxer Shorts. The open style of the standard boxer combined with the moisture-wicking power of Merino Wool will help you stay cool and calm while you harness energy for your next adventure.
      Minus33 Merino Wool Clothing Woolverino Men's Micro Weight Wool Boxer Shorts

      Microweight

      Men's Wool Boxer Shorts

      Woolverino

      $44.99
      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 Woolverino Men's Micro Wool 1/4 Zip. This top provides unparalleled functionality for any activity. Use it to fend off black flies with the mock neck or as a base layer on your next hike.
      Minus33 Merino Wool Clothing Woolverino Men's Micro Wool 1/4 Zip

      Microweight

      Men's Wool 1/4 Zip

      Woolverino

      $79.99
      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! With buttons to help ventilate after a long hike or from working up a sweat, this henley makes a great addition to your layering system. With performance and style, you'll be reaching for this top on a daily basis come wintertime.  
      Midweight - Men's Long Sleeve Button Up 100% Merino Wool

      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
      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
      Expedition - Men's Mock Neck 100% Merino Wool. This Expedition Mock Neck is the perfect base layer when temperatures drop. The 100% Australian Merino Wool is soft next to the skin.
      Expedition - Men's Mock Neck 100% Merino Wool

      Heavyweight

      Men's Mock Neck

      100% Merino Wool

      $149.99

      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
      Midweight - Men's Long Sleeve Button Up 100% Merino Wool. When you need a more formal shirt than your crew tops, with all the benefits of merino wool. Whether it's date night, a business casual meeting, or hanging out at home, this midweight top can handle it all. The knit construction allows for 4 way stretch performance in any circumstance. 
      Midweight - Men's Long Sleeve Button Up 100% Merino Wool

      Midweight

      Men's Long Sleeve Button Up

      100% Merino Wool

      $119.99
      New Style
      Merino Wool underwear Pouch Boxer Briefs athletic
      Merino Wool underwear Pouch Boxer Briefs athletic

      Microweight

      Men's Pouch Boxer Briefs

      Woolverino

      $44.99
      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