Underwear & Base Layer

Save big on Underwear at Sportsman's Guide. Every guy could use a couple new pairs of Boxers or Briefs in their life; but we have more to offer like Thermals, Long Underwear, Compression Shorts, Scent Proof Base Layers, Long Johns, and more.

Grid List
Sort By:
1-28 of 28
Show:
Pages:
  1. 1
1
  1. Guide Gear® 10-oz. Brown Poly-fleece Crew-neck Top

    5 stars
    (63)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $40.00

    In Stock

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

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

    In Stock

  3. 2-Pk. of Indera Mills® Colored Thermal Long John Tops

    4 stars
    (11)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

    In Stock

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

    5 stars
    (25)
    Buyer's Club $8.99 Non-Member $9.99 Compare at $25.00

    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. 6-Pk. Guide Gear® Pouch Briefs

    5 stars
    (76)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $38.00

    In Stock

  3. Polar King® Thermal Top

     
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

  4. Polar King® Thermal Bottoms

     
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

  1. 32 Degrees HEAT® Base Layer Bottoms

     
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  2. Men's 32 Degrees Heat by Weatherproof® Performance Base-layer Bottoms

    5 stars
    (18)
    Clearance $9.99

    In Stock

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

     
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  2. Indera® 2-layer Performance Thermal Bottoms, Gray

    4 stars
    (10)
    Clearance $14.99 Compare at $38.00

    In Stock

  3. Carhartt® Irregular Base Force® Super PT Top

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

    In Stock

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

    4 stars
    (5)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $25.99

    In Stock

  2. 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

  3. 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

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

     
    Buyer's Club $17.99 Non-Member $19.99 Compare at $21.99

    In Stock

  1. Rock Face® 2-layer Thermal Pants from Rock Face®

    3 stars
    (2)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $27.00

    In Stock

  2. Rock Face® 7-oz. Raschel Thermal Shirt

    3 stars
    (1)
    Buyer's Club $13.49 Non-Member $14.99 Compare at $20.00

    In Stock

  3. Rock Face® 7-oz. Raschel Thermal Pants

    4 stars
    (2)
    Buyer's Club $13.49 Non-Member $14.99 Compare at $20.00

    In Stock

  4. Rock Face® 2-layer Thermal Shirt from Rock Face®

    4 stars
    (2)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $27.00

    In Stock

  1. Rock Face® 9-oz. Raschel Thermal Shirt

    5 stars
    (2)
    Buyer's Club $16.19 Non-Member $17.99 Compare at $27.00

    In Stock

  2. Rock Face® 9-oz. Raschel Thermal Pants

    5 stars
    (1)
    Buyer's Club $16.19 Non-Member $17.99 Compare at $27.00

    In Stock

  3. 2-Pk. Hanes® Boxer Shorts

     
    Buyer's Club $13.49 Non-Member $14.99 Compare at $20.00

    In Stock

  4. 2-Pk. Hanes® Boxer Shorts

    5 stars
    (1)
    Buyer's Club $13.49 Non-Member $14.99 Compare at $20.00

    In Stock

1-28 of 28
Show:
Pages:
  1. 1
1

These long johns and underwear are great for Outdoors activities. We carry many of your favorite brands like Under Armour, Guide Gear, WSI, and 5.11 Tactical.

Related Products

WSI® Arctic HEATR® Vent Shirt, Black

Item # WX2-219818

Starting at...
Buyer's Club $71.99 Non-Member $79.99

Add to Wishlist

WSI® Arctic HEATR® Vent Shirt provides athletic warmth and breathability.

A thin, super-light warming layer, made from a combination of 3 fabrics: 1. HEATR® fabric in the collar for extra warmth. 2. WikMax™ fabric for moisture-wicking comfort thinner in the underarms for added ventilation, thicker in the torso and arms for added insulation. 3. Spandex for a good fit. 1/4-zip front with stand-up collar. Made in the USA. Machine wash / dry.

State Size, as available in the Shopping Cart.

Fox Tactical™ ECWCS Polypropylene Long Underwear Bottom

Item # WX2-296589

Buyer's Club $26.99 Non-Member $29.99 Compare at $32.95

Add to Wishlist

Fox TacticalTM ECWCS Polypropylene Long Underwear Bottom... your Extreme Cold Weather Clothing System for bitter cold!

Military-style "long johns", made in the USA from mil-spec 10.5-oz. 100% polypropylene, with fleece lining for extra warmth and comfort. For work or play in the winter cold, these can't be beat. Elastic waist, rib-knit cuffs. Machine wash / dry. Imported.

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


Men's Guide Gear® Kingsilk Bottoms, Black

Item # WX2-208077

4 stars
Starting at...
Buyer's Club $26.99 Non-Member $29.99

Add to Wishlist

Guide Gear® Kingsilk Base Layers, 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. Order Now!

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

Youth's WSI® Microtech Loose Long-sleeve Shirt, Black

Item # WX2-219796

Buyer's Club $17.99 Non-Member $19.99 Compare at $25.99

Add to Wishlist

Youth's WSI® Microtech Loose Long-sleeve Shirt. All-pro performance apparel that won't bust your salary cap.

Moisture wicking dryness and soft comfort for the high-priced talent on your squad! And unlike other big-name athletic apparel out there, WSI® gear won't handcuff your franchise, so to speak. Even pro athletes swear by WSI, and for good reason... it performs.

Fabric is 100% polyester Microtech that wicks moisture and keeps warm down to 30°F. Loose fit. Crew neck. Made in the USA. Machine wash / dry.

State Size, as available in the Shopping Cart.

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