• Toll-Free: 877-300-1544
  • Cart: 0 item
    RECENTLY ADDED:
    Subtotal:
  • Checkout
ms-landing.png
NEW CUSTOMERS  - SAVE 15% - USE CODE: NEW2TREKT. EXCLUDES SELECT BRANDS/ITEMS.

Men's Baselayers & Underwear

60 Products

Items per Page:
View as:
  • Thin yet effective, Columbia's midweight baselayer is perfect for skiing or cold-weather hiking. A 1/2 zipper allows for easy venting, helping you avoid the hassle of shedding an entire layer.

    Our Price:
    $24.00
  • Patagonia's most breathable synthetic baselayer keeps you dry and comfortable in cool conditions.

    Our Price:
    $27.00
  • Patagonia's stretchiest synthetic baselayer keeps you dry and cool in warm conditions, with 50-UPF sun protection.

    Our Price:
    $17.40
  • Designed to be worn for cold weather aerobic activities, this is one of the hardest working baselayer tops on the market. Offering the Merino wool breathability, it's an ideal top for winter running or Nordic/skate skiing.

    Our Price:
    $72.00
  • Nice and warm, the Men's HyFi full zip is going to be a new favorite for trail runs and hikes throughout the cold chilly months. Wear it as a midlayer for ski/snowboard adventures or as a standalone on those more moderate weather days on the trail.

    As Low as:
    $80.00
  • Stay comfortable and dry in cool to warm conditions in Patagonia's fastest drying and highly breathable baselayer with 20-UPF sun protection.

    As Low as:
    $34.30
  • This Zip T features a 14" front zipper and a drop tail bottom hem for increased coverage and easier tuckability. Contoured sleeve cuff keeps sleeves in place while flatlock seams eliminate chafing.

    Our Price:
    $57.00
  • Smartwool's best selling and warmest baselayer just got a little more refined with an improved fit, chafe-free seam construction and panels that offer more comfort . The mock neck adds a little extra neck protection without feeling constricted.

    Our Price:
    $50.00
  • Ideal for cold weather activities, the Funnel has a 1/2 zip which is longer than the 1/4 zip so it allows for even greater ventilation. Made of 100% merino wool, you're going to love the soft against skin feel.

    As Low as:
    $57.50
  • For those cold days when you need a little more warmth under your helmet and down your neck, the SmartWool Lightweight Hoody is the ideal solution. The hood fits comfortably around the head without being too snug and provides a comfy fit.

    Our Price:
    $69.00
  • A must-have midlayer piece, essential for keeping your core warm in cool weather. The Men's PHD Hyfi offers you breathability with no bulk, and pulls away unwanted moisture and heat from your body.

    Our Price:
    $90.00
  • The Columbia Schuss is a perfect solution to those days when you can't decide between a traditional long sleeve and midlayer pullover. With UPF protection and water resistant properties, this is one stellar crew.

    Our Price:
    $20.00
  • This densely woven knit 1/4 zip pullover offers maximum warmth with minimal bulk, keeping you warm even on the coldest days. Ideal for trail runs and hiking adventures, wear it around town on chilly brisk days as a standalone.

    As Low as:
    $68.00
  • A layering piece designed like a second skin. The Stretch Thermal offers lightweight warmth and unsurpassed mobility in a soft, stretchable fleece.

    Our Price:
    $90.00
  • A new pullover geared at insulating wool comfort in a clean, casual design. Pez fabric is 21 micron, 290 g/m2 fabric with great loft and great warmth.

    Our Price:
    $122.50
  • If you don't know where the day will take you, the SmartLoft Divide Vest keeps options open. A Merino lining, windproof face, and smart insulation keep a consistent core temp so muscles can go longer.

    As Low as:
    $102.00
  • Layer right to go far in the PhD SmartLoft Divide jacket. Merino lining keeps you comfortably warm and dry. Insulated nylon facing handles the wind. Machine washable.

    As Low as:
    $120.00
  • SL729-Chafe - proof flatlock seams, jersey knit construction and a collared zip neck make this baselayer piece a Microweight must in your layer system.

    As Low as:
    $51.00
  • For those cold days when you need a little more warmth under your helmet and down your neck, the SmartWool Lightweight Hoody is the ideal solution. The hood fits comfortably around the head without being too snug and provides a comfy fit.

    Our Price:
    $80.50
  • Featuring a crew neckline and athletic fit, this tee is a perfect baselayer in cool to cold weather. Great as a stand-alone piece for warm to hot weather activities. Made from 100% Merino wool, it's super soft and wicks moisture away from the body.

    Our Price:
    $49.00
  • SL728 - Great as a baselayer in cooler conditions, or by itself when it heats up. Made from Smartwools lightest NTS fabric, this crew was designed with flatlock seam construction to eliminate chafing.

    Our Price:
    $52.50
  • Patagonia's warmest and most breathable synthetic baselayer keeps you dry and comfortable in cold conditions. Updated for 2012, the new Capilene 4 is lighter and warmer.

    Our Price:
    $39.50
  • Smartwool's best selling, and warmest, baselayer, just got a little more refined with an improved fit, chafe-free seam construction and panels that offer more comfort with a pack.

    Our Price:
    $80.00
  • With the Mid 250 Zip T, you quit only when you want to. With next-to-skin Merino, it wicks and regulates core temp as a solo piece or smartly layers up when it gets chilly. First Layer fit with no-chafe.

    Our Price:
    $88.00
See Trekt Reviews at Bizrate.com