Underwear & Base Layer

Save big on 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. We carry many of your favorite brands like Guide Gear, WSI, Carhartt and more!

Grid List
Sort By:
1-48 of 48
Show:
Pages:
  1. 1
1
  1. 2-Pk. of Indera Mills® Colored Thermal Long John Bottoms

    4 stars
    (23)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

    In Stock

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

    4 stars
    (65)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    In Stock

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

    5 stars
    (62)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $75.00

    In Stock

  4. Under Armour® ColdGear® Infrared EVO Mock Turtleneck

    5 stars
    (19)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  1. Under Armour® ColdGear® Infrared EVO Leggings

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

    In Stock

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

    4 stars
    (17)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

    In Stock

  3. Men's Guide Gear Bottoms, Black

    4 stars
    (43)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    In Stock

  4. Polar King Thermal Bottoms

     
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

  1. Polar King Thermal Top

    4 stars
    (2)
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

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

    5 stars
    (71)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $40.00

    In Stock

  3. Men's Guide Gear Crew Top, Black

    4 stars
    (43)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    In Stock

  4. 32 Degrees HEAT® Base Layer Bottoms

    5 stars
    (5)
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

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

    4 stars
    (4)
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

  2. Under Armour® Base 2.0™ Leggings

    4 stars
    (3)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  3. 2-Pk. of Guide Gear® Thermaweave Stretch Base Layer Tops

    4 stars
    (33)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $50.00

    In Stock

  4. Under Armour® Base 2.0™ Crew

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

    In Stock

  1. Under Armour® Base 3.0™ Leggings

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

    In Stock

  2. Under Armour® Base 3.0™ Crew

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

    In Stock

  3. Carhartt® Irregular Base Force® Super PT Bottoms

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

    In Stock

  4. 32 Degrees HEAT® Heat Fleece Top

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

    In Stock

  1. 32 Degrees HEAT® Heat Fleece Bottoms

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

    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. 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. Terramar® Thermolator Leggings

     
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

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

     
    Buyer's Club $40.49 Non-Member $44.99

    In Stock

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

     
    Buyer's Club $40.49 Non-Member $44.99

    In Stock

  3. Carhartt® Base Force Midweight Bottoms

     
    Buyer's Club $31.49 Non-Member $34.99

    In Stock

  4. Carhartt® Base Force Midweight Crew Top

     
    Buyer's Club $31.49 Non-Member $34.99

    In Stock

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

    5 stars
    (39)
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  2. Terramar® Thermolator 1/2-zip Top

     
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

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

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

    In Stock

  4. Outdoor Research® Sequence™ Long-sleeved Crew

     
    Non-Member $59.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  1. Outdoor Research® Sequence™ Leggings

     
    Non-Member $59.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  2. 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

  3. Men's WSI® Microtech Fitted Long-sleeve Shirt

    3 stars
    (6)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $21.99

    In Stock

  4. Men's WSI® Arctic Microtech Long-sleeve Cold Weather Performance Shirt

    5 stars
    (2)
    Buyer's Club $35.99 Non-Member $39.99 Compare at $45.99

    In Stock

  1. Men's WSI® Arctic WikMax™ Pants, Black

    5 stars
    (1)
    Buyer's Club $44.99 Non-Member $49.99 Compare at $59.99

    In Stock

  2. Men's WSI® Compression Shorts

    2 stars
    (2)
    Buyer's Club $22.49 Non-Member $24.99 Compare at $27.99

    In Stock

  3. WSI® Microtech Neon Green Fitted Long-sleeved Shirt

    3 stars
    (1)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $21.99

    In Stock

  4. Men's WSI® Microtech Loose Long-sleeve Shirt, Black

    4 stars
    (6)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $25.99

    In Stock

  1. Men's WSI® Microtech Fitted Sleeveless Shirt

    4 stars
    (4)
    Buyer's Club $13.49 Non-Member $14.99 Compare at $17.99

    In Stock

  2. Men's WSI® Microtech Zipper Polo, Black

    3 stars
    (1)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $35.99

    In Stock

  3. Men's WSI® WikMax HEATR® Pants, Black

     
    Buyer's Club $116.99 Non-Member $129.99 Compare at $139.99

    In Stock

  4. Carhartt® Heavyweight Cotton Thermal Long Underwear Bottoms

    5 stars
    (5)
    Non-Member $29.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  1. Carhartt® Heavyweight Crewneck Shirt

    5 stars
    (1)
    Non-Member $29.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  2. Carhartt® Base Force™ Cold Weather Weight Long Underwear Bottoms, Black

     
    Non-Member $39.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  3. Volt Resistance™ TACTICAL 7V™ Heated Base Layer

     
    Buyer's Club $112.49 Non-Member $124.99 Compare at $129.95

    In Stock

  4. Carhartt® Base Force™ Cool Weather Weight Crewneck Shirt, Black

     
    Non-Member $29.99 Buyer's Club Discount Applied at Checkout!

    In Stock

1-48 of 48
Show:
Pages:
  1. 1
1

Related Products

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

Item # WX2-307432

5 stars
  • Info

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

Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

Add to Wishlist

Indera Mills® Performance Thermal Bottoms are thick, comfortable and WARM. SAVE BIG BUCKS!

Supremely insulating! Since 1914 Indera Mills® has been making top-quality clothing to embrace the American lifestyle. It's all about creating medium-activity garments to keep you warm, goose-bump free and comfortable in the cold and extreme cold.

Whether you're trekking through the woods in search for your trophy on a frosty day, ice fishing or working a long shift outside in the dead of winter... you'll feel just right all day long with this name brand stuff. 

  • 65/35 cotton / polyester blend
  • Thermal knit traps and retains body heat
  • Full cut for a comfortable fit
  • Shrinkage controlled for lasting size and shape.

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

3 New Dutch Military Surplus Fleece Long Underwear Bottoms

Item # WX2-590736

  • Info

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

Buyer's Club $17.99 Non-Member $19.99

Add to Wishlist

3-Pk. of New Dutch Military Surplus Fleece Long Underwear.

Hey, Chilly Willy! When it's c-c-cold out, make sure you deploy an extra layer with these Bottoms to ward off Jack Frost "offensives."

  • Cotton-blend material
  • Comfortable elastic waist
  • Rib-knit ankle cuffs lock in warmth
  • Machine wash / dry
  • Imported

Condition: brand new, never issued. State Size, as available in the Shopping Cart. Recruit yours today!

!!! Limited Quantities !!!

Men's Guide Gear Bottoms, Black

Item # WX2-208077

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 $26.99 Non-Member $29.99

Add to Wishlist

Guide Gear® Bottoms, 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. Imported. Machine wash / hang dry.

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!

2-Pk. TRU-SPEC® CORDURA® Base Layer Boxer Briefs

Item # WX2-618726

  • 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

2-Pk. TRU-SPEC® CORDURA® Base Layer Boxer Briefs. Defend your base!

No melt. No drip. No sweat. Put a layer of protection against your skin with one of the world's toughest undergarments.

Details:

  • CORDURA® 60/40 cotton / nylon fabric is no-melt / no-drip, and it absorbs more moisture and dries faster than 100% cotton
  • Won't melt or drip like polyester
  • Flat-lock seams for no-chafe comfort
  • Elastic waistband with gripper to secure your shirttail
  • Rib-knit hem
  • Machine wash / dry
  • Imported

State Size, as available in the Shopping Cart.

!!! Limited Quantities !!!

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