Underwear & Base Layer

Save big on Men's Underwear 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:
49-54 of 54
Show:
Pages:
  1. 1
  2. 2
2
  1. 5 stars
    (20)
    Non-Member $29.99 Buyer's Club Pricing Applied at Checkout!
  2. 5 stars
    (1)
    Non-Member $34.99 Buyer's Club Pricing Applied at Checkout!
  3. 5 stars
    (6)
    Non-Member $29.99 Buyer's Club Pricing Applied at Checkout!
  4. 5 stars
    (1)
    Non-Member $34.99 Buyer's Club Pricing Applied at Checkout!
  1.  
    Compare at $69.99 Was $64.99 Non-Member $59.99 Buyer's Club $53.99

    You Save $16.00 (23%)

  2.  
    Compare at $79.99 Was $74.99 Non-Member $69.99 Buyer's Club $62.99

    You Save $17.00 (21%)

49-54 of 54
Show:
Pages:
  1. 1
  2. 2
2

Related Products

Guide Gear Lightweight Silk Balaclava

Item # WX2-208081

4 stars
(11)
  • Info

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

Compare at $30.00 Non-Member $19.99 Buyer's Club $17.99

You Save $12.01 (40%)

Add to Wishlist

Guide Gear® Lightweight Silk Balaclava, 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. One piece with a knit neck cuff and eyehole trim, weighs under 1 oz., one size. Imported. One size fits most. Machine wash / hang dry.

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 4.0 Leggings, Black

Item # WX2-635791

  • Info

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

Non-Member $84.99 Buyer's Club Pricing Applied at Checkout!

Add to Wishlist

Under Armour® BaseTM 4.0 Leggings. Reliable warmth for the most extreme conditions!

Your first -- and best -- layer of defense against extreme cold! Under Armour Base 4.0 Leggings are Under Armour's thickest, warmest base layer, making them ideal for cold weather hunting, sports and chores. Equipped with ArmourBlock anti-odor technology to help prevent and eliminate tell-tale odors.

Build a better base:

  • Body is made of 7.25-oz. 96/4 polyester / elastane;
  • Knee to hem is made of 4.5-oz. 93/7 polyester / elastane;
  • Fitted style is designed to fit close to your body without the constriction of compression;
  • Ergonmic seam placement and flatlock stitching won't chafe or irritate;
  • ArmourBlock neutralizes odor-casuing microbes to keep your gear smelling fresher, longer;
  • Imported.

State Size, as available in the Shopping Cart.

...More Details

Under Armour Extreme Base Top with Scent Control, Black / Velocity

Item # WX2-635788

  • 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 Pricing Applied at Checkout!

Add to Wishlist

Under Armour® Extreme Base Top with UA Scent Control. Your first layer of defense against cold, frigid conditions!

Every great journey -- and hunt -- starts with a single step. For cold-weather hunts, make your first step a smart one by gearing up with this Under Armour Extreme Base Top with Scent Control. It's the ideal base layer to keep you warm, dry and comfortable in extreme cold conditions. Plus, it features UA Scent Control and ArmourBlock® anti-odor technology to help prevent whitetails from sniffing you out.

Here's more:

  • Made of soft, comfortable 100% polyester
  • High-pile, moisture-wicking interior draws perspiration away from your body to keep you dry
  • Strategically placed stretch panels provide a snug yet comfortable fit that moves with you
  • UA Scent Control technology
  • ArmourBlock anti-odor technology uses a combination of silver and chitosan as antimicrobials that "block" odors before there is any odor at all
  • Imported.

State Size, as available in the Shopping Cart. Trust your comfort to Under Armour!

...More Details

Guide Gear Men's Crewneck Sweatshirt & Tapered Sweatpants Set, Poly-Fleece

Item # WX2-52812

5 stars
(72)
  • Info

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

Starting at...
Was $24.99 Non-Member $19.99 Buyer's Club $17.99

Add to Wishlist

Guide Gear® Men's Crewneck Sweatshirt & Tapered Sweatpants Set, Poly-Fleece.

Bitter coldness is exactly why we developed this Guide Gear® Poly-Fleece Underwear. And our factory-direct pricing makes it the best value. In fact, we started with the U.S. Military's original E.C.W.C.S. Thermal Underwear and improved the fit and fabric for civilian-approved comfort.

This amazing 10-oz. polyester fabric insulates incredibly AND it's hydrophobic ("water hating") to suck moisture off your skin when you work up a sweat. Even better, this fabric does NOT retain odor. Brushed-fleece finish inside.

  • Crewneck has cuffs with stretch Lycra®
  • Machine wash / dry. Imported.

State Size, as available in the Shopping Cart. 

Please Note: This item may be Kenyon or Guide Gear brand. Sorry, no choice.

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

...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