Underwear & Base Layer

Stay warm and dry this season with Hunting Underwear from Sportsman's Guide. Shop for Long Johns, Base Layers, Thermal Underwear for hunting and your other outdoor activities. Shop The Guide's selection for unbeatable deals from top brands such as Guide Gear, Carhartt, WSI, 5.11 Tactical, Under Armour and many more and save BIG!

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  1. 2-Pk. of Indera Mills® Colored Thermal Long John Bottoms

    4 stars
    (20)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

    In Stock

  2. 2-Pk. of Guide Gear® Thermaweave Stretch Base Layer Pants

    3 stars
    (28)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $50.00

    In Stock

  3. Under Armour® ColdGear® Infrared EVO Mock Turtleneck

    5 stars
    (16)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  4. Under Armour® ColdGear® Infrared EVO Leggings

    4 stars
    (13)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  1. 2-Pk. of Indera Mills® Colored Thermal Long John Tops

    4 stars
    (16)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

    In Stock

  2. Guide Gear® 10-oz. Poly-fleece Union Suit, Brown

    5 stars
    (55)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $75.00

    In Stock

  3. Guide Gear® 10-oz. Brown Poly-fleece Bottoms

    4 stars
    (60)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $40.00

    In Stock

  4. Men's Guide Gear® Kingsilk Bottoms, Black

    4 stars
    (38)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    In Stock

  1. 2-Pk. of Guide Gear® Thermaweave Stretch Base Layer Tops

    4 stars
    (30)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $50.00

    In Stock

  2. Guide Gear® 10-oz. Brown Poly-fleece Crew-neck Top

    5 stars
    (64)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $40.00

    In Stock

  3. 32 Degrees HEAT® Base Layer Bottoms

     
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  4. Under Armour® Base 3.0™ Leggings

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

    In Stock

  1. Men's Guide Gear® Kingsilk Crew Top, Black

    4 stars
    (42)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    In Stock

  2. Polar King® Thermal Bottoms

     
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

  3. Under Armour® Base 3.0™ Crew

    5 stars
    (1)
    Non-Member $74.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  4. Polar King® Thermal Top

     
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

  1. 32 Degrees HEAT® Base Layer Crew-neck Top

    4 stars
    (1)
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  2. Under Armour® Base 2.0™ Leggings

    4 stars
    (1)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  3. Under Armour® Base 2.0™ Crew

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

    In Stock

  4. New U.S. Military Surplus Polartec® X-static® Long-sleeved Crew Shirt, Coyote

    5 stars
    (11)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $50.00

    In Stock

  1. Guide Gear® 10-oz. Poly-fleece Balaclava, Brown

    4 stars
    (27)
    Buyer's Club $8.99 Non-Member $9.99 Compare at $25.00

    In Stock

  2. 4 Hanes® Flannel Boxers

    4 stars
    (11)
    Buyer's Club $22.49 Non-Member $24.99 Compare at $40.00

    In Stock

  3. 32 Degrees HEAT® Heat Fleece Top

     
    Buyer's Club $22.49 Non-Member $24.99

    In Stock

  4. Under Armour® Treestand Base Top, Black

     
    Non-Member $79.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  1. Guide Gear® Kingsilk Balaclava, Black

    4 stars
    (9)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $30.00

    In Stock

  2. Under Armour® Treestand Base Bottoms, Black

     
    Non-Member $79.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  3. 6-Pk. Guide Gear® Pouch Briefs

    5 stars
    (79)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $38.00

    In Stock

  4. 32 Degrees HEAT® Heat Fleece Bottoms

    5 stars
    (1)
    Buyer's Club $22.49 Non-Member $24.99

    In Stock

  1. Men's Under Armour® ColdGear® EVO Base Layer Leggings

    3 stars
    (1)
    Non-Member $74.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  2. 6-Pk. Guide Gear® Boxer Briefs

    5 stars
    (102)
    Buyer's Club $22.49 Non-Member $24.99 Compare at $38.00

    In Stock

  3. Carhartt Force® Super Cold Weather Thermal Underwear Pants, Black

     
    Non-Member $44.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  4. Terramar® Thermolator Leggings

     
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  1. Carhartt Force® Super Cold Weather Thermal Underwear Shirt, Black

     
    Non-Member $44.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  2. Browning® Hell's Canyon Midweight Base Layer Top, Realtree Xtra® Camo

    1 stars
    (1)
    Buyer's Club $44.99 Non-Member $49.99 Compare at $66.00

    In Stock

  3. Terramar® Thermolator 1/2-zip Top

     
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  4. Browning® Hell's Canyon Midweight Base Layer Pants, Realtree Xtra® Camo

     
    Buyer's Club $35.99 Non-Member $39.99

    In Stock

  1. 6-Pk. of Guide Gear® Camp Base Boxer Briefs, Camo

    5 stars
    (38)
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  2. Carhartt® Irregular Base Force® Super PT Bottoms

     
    Buyer's Club $17.99 Non-Member $19.99 Compare at $44.99

    Item is currently on backorder

  3. 6-Pk. of Guide Gear® Pouch Briefs, Camo

    5 stars
    (23)
    Buyer's Club $22.49 Non-Member $24.99

    In Stock

  4. Carhartt® Base Force Midweight Bottoms

     
    Non-Member $34.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  1. Carhartt® Base Force Midweight Crew Top

     
    Non-Member $34.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  2. Carhartt® Irregular Base Force® Super PT Top

     
    Buyer's Club $17.99 Non-Member $19.99 Compare at $44.99

    In Stock

  3. Clam™ Ice Armor™ Base Layer Fleece Top

    4 stars
    (4)
    Buyer's Club $29.69 Non-Member $32.99

    In Stock

  4. ScentBlocker® S3® Midweight Wool Pants, Black / Gray

     
    Clearance $59.99

    In Stock

  1. Clam™ Ice Armor™ Base Layer Fleece Bottom

    5 stars
    (6)
    Buyer's Club $29.69 Non-Member $32.99

    Item is currently on backorder

  2. Carhartt® Irregular Base Force® Cold Weather Bottoms

     
    Buyer's Club $17.99 Non-Member $19.99

    Item is currently on backorder

  3. Carhartt® Irregular Base Force® Super Cold Weather Bottoms

    4 stars
    (2)
    Buyer's Club $22.49 Non-Member $24.99

    Item is currently on backorder

  4. Scent Blocker® S3® Arctic Fleece Base Layer Pants

     
    Buyer's Club $62.99 Non-Member $69.99 Compare at $79.99

    In Stock

1-48 of 88
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Related Products

Guide Gear® 10-oz. Brown Poly-fleece Bottoms

Item # WX2-52816

4 stars
  • Info

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

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

Add to Wishlist

Guide Gear® 10-oz. Poly-Fleece Underwear.

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.

  • Bottoms have a flapped fly
  • 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!

32 Degrees HEAT® Base Layer Bottoms

Item # WX2-610526

  • Info

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

Buyer's Club $13.49 Non-Member $14.99

Add to Wishlist

32 Degrees HEAT® Base Layer Bottoms do everything you want your Long Johns to do. PRICED LOW!

Layer up for the next polar vortex! Not only does every fiber help retain body heat, but they also minimize unpleasant odor caused by sweating. Plus, these Base Layer Bottoms are quick-drying to wick away moisture, keeping you dry and comfortable.

Can't stand static? No worries with these Bottoms... they contain a special anti-static agent to reduce clings and discomfort. And they come in so many vibrant colors for when you just want to lounge around in them... you haven't loved Long Johns this much since you were a kid!

Bottoms up:

  • Stretch yarns maximize long-term comfort in a lasting shape
  • Soft-hand feel with 37/34/25/4 acrylic / polyester / rayon / spandex blend
  • Machine wash / hang dry
  • Imported.

State Color and Size, as available in Shopping Cart.

Polar King® Thermal Bottoms

Item # WX2-608578

  • Info

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

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

Add to Wishlist

Polar King® Thermal Bottoms.

Hot stuff! These toasty Thermal Bottoms have rib-knit cuffs and an elastic waist so they stay in place when layering, and they keep the warmth where it belongs... on you! Machine wash / dry. Imported. 50/50 Cotton / Poly blend fabric.

State Color and Size, as available in the Shopping Cart. Bottoms up!

Clam™ Ice Armor Merino Wool Blend Base Layer Bottom

Item # WX2-229840

  • 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 Discount Applied at Checkout!

Add to Wishlist

ClamTM Ice Armor Merino Wool Blend Base Layer Bottom. Warm, comfortable, moisture-wicking performance for your "better half"!

Mixing the right combination of fabrics to get the perfect blend of warmth, comfort and moisture-wicking in a Base Layer is a thing of beauty. Clam™'s done it again... they've taken Merino wool - the "Cadillac" of wools - and added in silver nylon to make the ultimate Base Layer Bottom!

The warm-up:
  • Made from 50/50 merino wool / polyester for the best in warm, comfortable, moisture-wicking performance
  • Ribbed ankle cuffs for added warmth and a better fit
  • Anti-microbial technology helps control odors
  • Front fly. Hand wash cold water, hang dry. Imported.

State Size, as available in the Shopping Cart.

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