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!

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Related Products

Guide Gear Men's Lightweight Silk Base Layer Pants

Item # WX2-208077

4 stars
(55)
  • Info

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

Starting at...
Was $39.99 Non-Member $34.99 Buyer's Club $31.49

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Guide Gear® Men's Lightweight Silk Base Layer Pants, BIG BUCKS OFF!

Ounce for ounce, silk is the warmest fabric there is. Naturally moisture wicking, dry and comfortable. Smooth surface won't catch or cling to clothing. Bottoms have an elastic waistband.

  • 100% silk
  • Lightweight fabric
  • Machine wash gentle cycle, tumble dry low
  • Imported.

State Size, as available in the Shopping Cart.

Built to Sportsman's Guide's exact specifications, Guide Gear® stands for dependability, long-lasting quality and unmatched value! Guaranteed!

...More Details

Under Armour Base 3.0 Leggings, Black

Item # WX2-592277

4 stars
(2)
  • Info

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

Non-Member $74.99 Buyer's Club Pricing Applied at Checkout!

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Under Armour® Base 3.0TM Leggings. Maximum warmth, minimum bulk for EXTREME cold-weather comfort!

What's your game? Hunting? Ice Fishing? Falconry? Whatever your pursuit, choose Under Armour Base 3.0 Leggings as the insulating base layer for your bottom half. They're made of heavyweight 7-oz. fabric to keep you warm and comfortable in extreme cold. Unique construction traps warmth without adding bulk. Smooth exterior allows easy layering.

  • Made of heavyweight 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 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

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!

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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

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%)

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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

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