Underwear & Base Layer

Save big on Men's Underwear and Base Layer at Sportsman's Guide. Every guy could use a couple new pairs of Boxers or Briefs and at Sportsman's Guide you can also choose from Thermal Long Underwear, Compression Shorts, Base Layers, Long Johns to name just a few. These Long Johns and Underwear are great for outdoors activities. Stay comfortable throughout your workday and leisure time. We carry many of your favorite brands like Guide Gear, WSI, Carhartt and more! Shop all Underwear and enjoy the lowest prices, guaranteed!

Grid List
Sort By:
1-25 of 25
Show:
Pages:
  1. 1
1
  1. 5 stars
    (125)
    Compare at $38.00 Non-Member $24.99 Buyer's Club $22.49

    You Save $15.51 (41%)

  2. 4 stars
    (47)
    Compare at $40.00 Was $39.99 Non-Member $34.99 Buyer's Club $31.49

    You Save $8.51 (21%)

  3. 5 stars
    (71)
    Compare at $75.00 Was $34.99 Non-Member $29.99 Buyer's Club $26.99

    You Save $48.01 (64%)

  4. 4 stars
    (55)
    Compare at $40.00 Was $39.99 Non-Member $34.99 Buyer's Club $31.49

    You Save $8.51 (21%)

  1. 5 stars
    (69)
    Compare at $40.00 Was $39.99 Non-Member $24.99 Buyer's Club $22.49

    You Save $17.51 (44%)

  2. 5 stars
    (51)
    Compare at $57.00 Non-Member $29.99 Buyer's Club $26.99

    You Save $30.01 (53%)

  3. 5 stars
    (72)
    Compare at $40.00 Was $29.99 Non-Member $24.99 Buyer's Club $22.49

    You Save $17.51 (44%)

  4. 5 stars
    (25)
    Compare at $42.00 Non-Member $24.99 Buyer's Club $22.49

    You Save $19.51 (46%)

  1.  
    Non-Member $39.99 Buyer's Club Pricing Applied at Checkout!
  2. 5 stars
    (17)
    Non-Member $44.99 Buyer's Club $40.49
  3. 5 stars
    (1)
    Non-Member $44.99 Buyer's Club $40.49
  4.  
    Non-Member $34.99 Buyer's Club $31.49
  1.  
    Non-Member $34.99 Buyer's Club $31.49
  2.  
    Non-Member $47.99 Buyer's Club $47.99
  3.  
    Non-Member $47.99 Buyer's Club $47.99
  4. 5 stars
    (16)
    Compare at $44.99 Was $29.99 Non-Member $24.99 Buyer's Club $22.49

    You Save $22.50 (50%)

  1.  
    Compare at $50.00 Non-Member $29.99 Buyer's Club $26.99

    You Save $23.01 (46%)

    Item is currently on backorder

  2.  
    Compare at $50.00 Non-Member $29.99 Buyer's Club $26.99

    You Save $23.01 (46%)

    Item is currently on backorder

  3. 4 stars
    (11)
    Non-Member $39.99 Buyer's Club Pricing Applied at Checkout!
  4. 5 stars
    (20)
    Non-Member $29.99 Buyer's Club Pricing Applied at Checkout!
  1. 5 stars
    (6)
    Non-Member $29.99 Buyer's Club Pricing Applied at Checkout!
  2.  
    Non-Member $44.99 Buyer's Club Pricing Applied at Checkout!
  3. 5 stars
    (1)
    Non-Member $34.99 Buyer's Club Pricing Applied at Checkout!
  4. 5 stars
    (1)
    Non-Member $34.99 Buyer's Club Pricing Applied at Checkout!
  1. 5 stars
    (19)
    Non-Member $44.99 Buyer's Club Pricing Applied at Checkout!
1-25 of 25
Show:
Pages:
  1. 1
1

Related Products

Carhartt® Base Force™ Cool Weather Weight Long Underwear Bottoms, Black

Item # WX2-427603

5 stars
(1)
  • Info

    Why are all sizes not listed? We only display sizes that are currently available for you to order.

Starting at...
Non-Member $34.99 Buyer's Club Pricing Applied at Checkout!

Add to Wishlist

Carhartt® Base ForceTM Cool Weather Weight Long Underwear Bottoms. Working up a sweat? Stay comfortable and fresh.

Wear these specially-treated, moisture-wicking Long Underwear Bottoms as a base layer when the temps are chilly, indoors or out.

Clocked in:
  • 4.5-oz. 100% polyester midweight knit
  • Force™ fabric wicks away moisture, has an antimicrobial finish so you stay fresh
  • Smooth flat lock seams for comfort
  • Comfortable tapered cuffs seal out chill
  • Elastic waist with Carhartt® logo printed on bottom hem
  • Carhartt Force logo printed on back
  • Machine wash / dry. Imported.

State Size, as available in the Shopping Cart.

...More Details

Under Armour Base 2.0 Crew

Item # WX2-592274

5 stars
(4)
  • Info

    Why are all sizes not listed? We only display sizes that are currently available for you to order.

Non-Member $54.99 Buyer's Club Pricing Applied at Checkout!

Add to Wishlist

Under Armour® Base 2.0TM Crew delivers heat-trapping, insulated warmth WITHOUT bulk!

What's your game? Hunting? Fishing? Igloo building? Whatever your pursuit, choose this Under Armour Base 2.0 Crew as your insulating base layer. It's the perfect midweight option for colder conditions and varying activity levels. Unique construction traps warmth without adding bulk. Smooth exterior allows easy layering.

  • Made of 4.7-oz. 93/7 polyester / elastane for a streamlined fit without the squeeze of compression
  • Soft, brushed negative grid interior traps hot air, providing superior warmth
  • 4-Way Stretch fabrication allows greater mobility and maintains shape
  • Signature Moisture Transport System wicks sweat away from the body
  • Quick-dry fabrication keeps you light and comfortable
  • Anti-Odor technology prevents the growth of odor-causing microbes
  • Raglan sleeves and flatlock stitching allow full range of motion without chafing
  • Machine wash / dry
  • Imported.

State Size, as available in the Shopping Cart.

...More Details

Walls Men's 3 Pack Camo Boxers, Mossy Oak Break-Up

Item # WX2-635706

2 stars
(1)
  • Info

    Why are all sizes not listed? We only display sizes that are currently available for you to order.

Compare at $42.00 Non-Member $19.99 Buyer's Club $17.99

You Save $24.01 (57%)

Add to Wishlist

Walls® Men's 3 Pack Camo Boxers, Mossy Oak Break-Up. SAVE BIG!

Start your day the right way. Super-soft cotton in a roomy, non-binding fit, so you don't get your shorts in a twist. Because it's pretty difficult to have a great day in uncomfortable underwear! You get 3 pairs for 1 LOW price!

Top-quality comfort:

  • 60/40 Cotton/ Polyester blend
  • Comfort-flex waistband
  • Tagless design
  • Machine wash / dry
  • Imported

State Size, as available in the Shopping Cart.

...More Details

Scent Blocker® S3® Arctic Fleece Base Layer Pants

Item # WX2-227054

  • Info

    Why are all sizes not listed? We only display sizes that are currently available for you to order.

Non-Member $79.99 Buyer's Club $71.99

Add to Wishlist

Scent Blocker® S3® Arctic Fleece Base Layer Pants. Maximum heat retention, minimum weight.

But here's the real trick... Arctic Fleece Base Layers retain all that heat without turning you into a sweat-soaked mess. That's because they're not only warm, but supremely breathable, moisture-wicking and quick-drying. Add to that Scent Blocker®'s S3® antimicrobial technology to assist in controlling odors, and you've got yourself the perfect Base Layer for hunting in frigid temps!

Pants:
  • Elastic waist band
  • Elastic cuffs
  • Boxer style front fly. Black.

State Size, as available in the Shopping Cart. 

...More Details

Join or Renew The Sportsman’s Guide Buyer’s Club® Today!

$29.99 per year   • Save up to 10% on purchases every day.
Join Renew More Info