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!

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

    5 stars
    (66)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $40.00

    In Stock

  2. Men's Guide Gear Silk Base Layer Bottom, Black

    4 stars
    (47)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    In Stock

  3. 32 Degrees HEAT Base Layer Bottoms

    5 stars
    (12)
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  4. Polar King Thermal Bottoms

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

    In Stock

  1. Under Armour® ColdGear® Infrared EVO Mock Turtleneck

    5 stars
    (20)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

  2. Polar King Thermal Top

    3 stars
    (5)
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  3. Men's Guide Gear Silk Base Layer Crewneck, Black

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

    In Stock

  4. 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

  1. 32 Degrees HEAT Base Layer Crew-neck Top

    5 stars
    (7)
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  2. Under Armour® ColdGear® Infrared EVO Leggings

    4 stars
    (15)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

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

    5 stars
    (69)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $75.00

    In Stock

  4. 32 Degrees HEAT Heat Fleece Top

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

    In Stock

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

    4 stars
    (27)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

    In Stock

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

    4 stars
    (21)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $32.00

    In Stock

  3. 6-Pk. Guide Gear Pouch Briefs

    5 stars
    (80)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $38.00

    In Stock

  4. 32 Degrees HEAT Heat Fleece Bottoms

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

    In Stock

  1. Carhartt® Irregular Base Force® Super PT Bottoms

    4 stars
    (2)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $44.99

    In Stock

  2. Under Armour Base 2.0 Crew

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

    In Stock

  3. 6-Pk. Guide Gear® Boxer Briefs

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

    In Stock

  4. Under Armour® Base 3.0™ Crew

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

    In Stock

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

    4 stars
    (29)
    Buyer's Club $8.99 Non-Member $9.99 Compare at $25.00

    Item is currently on backorder

  2. Under Armour® Base 2.0™ Leggings

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

    In Stock

  3. Under Armour® Base 3.0™ Leggings

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

    Item is currently on backorder

  4. Carhartt Force Super Cold Weather Thermal Underwear Pants, Black

    5 stars
    (1)
    Buyer's Club $40.49 Non-Member $44.99

    In Stock

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

    5 stars
    (41)
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

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

    5 stars
    (1)
    Buyer's Club $40.49 Non-Member $44.99

    In Stock

  3. 4 Hanes Flannel Boxers

    4 stars
    (17)
    Buyer's Club $22.49 Non-Member $24.99 Compare at $40.00

    In Stock

  4. 2-Pk. of Guide Gear® Thermaweave Stretch Base Layer Pants

    3 stars
    (31)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $50.00

    In Stock

  1. 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

  2. Carhartt Base Force Midweight Crew Top

     
    Buyer's Club $31.49 Non-Member $34.99

    In Stock

  3. Terramar Thermolator Leggings

     
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  4. Carhartt® Base Force Midweight Bottoms

     
    Buyer's Club $31.49 Non-Member $34.99

    In Stock

  1. Terramar Thermolator 1/2-zip Top

    5 stars
    (1)
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  2. 6-Pk. of Guide Gear® Pouch Briefs, Camo

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

    In Stock

  3. Outdoor Research® Sequence™ Leggings

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

    In Stock

  4. Outdoor Research® Sequence™ Long-sleeved Crew

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

    In Stock

  1. Guide Gear® Balaclava, Black

    4 stars
    (11)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $30.00

    Item is currently on backorder

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

    5 stars
    (3)
    Buyer's Club $35.99 Non-Member $39.99 Compare at $45.99

    In Stock

  3. 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

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

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

    In Stock

  1. 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

  2. WSI® Arctic HEATR® Vent Shirt, Black

     
    Buyer's Club $71.99 Non-Member $79.99 Compare at $89.99

    In Stock

  3. 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

  4. 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

  1. 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

  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® WikMax HEATR® 1/4-zip Top

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

    In Stock

  4. 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

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Related Products

Youth's WSI® Arctic Microtech Long-sleeve Cold Weather Performance Shirt

Item # WX2-219793

  • Info

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

Buyer's Club $35.99 Non-Member $39.99 Compare at $45.99

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Youth's WSI® Arctic Microtech Long-sleeve Shirt, the best in cold-weather performance wear!

High-performance athletic apparel, made from special 100% polyester Microtech fabric that traps heat, blocks wind and wicks away sweat! The fabric is body-mapped, thinner under the arms for ventilation and freedom of motion, thicker in the body and arms to block wind. Athletes swear by it, and for good reason... it fits great and provides critical warmth! Stretch-fit. Made in the USA. Machine wash / dry. Imported.

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

Men's Under Armour® ColdGear® EVO Base Layer Mock Shirt

Item # WX2-592262

  • Info

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

Buyer's Club $52.19 Non-Member $57.99

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Under Armour® ColdGear® EVO Scent Control Base Layer Shirt. The ultimate in warm, scent-stealthy, near-silent hunting gear.

Under Armour® is the original moisture-wicking performance wear, favored by top athletes and hunters. As a base layer, it's unbeatable at keeping you at your best. Infrared fabric technology holds in heat without adding bulk. Scent-control tech keeps your scent under wraps.

Get into the best:

  • 87/13 polyester / elastane ColdGear® fabric, with snugly supportive compression fit and moisture-wicking comfort
  • Brushed fabric stays quiet in the field
  • Infrared fabric technology locks in warmth without adding bulk
  • Scent-control technology masks you from your prey and lasts 10X longer than carbon
  • Flat-lock seams won't chafe
  • Antimicrobial to inhibit odor bacteria
  • Shirt has mock turtleneck
  • Machine wash / hang dry. Imported.

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

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

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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
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State Size, as available in the Shopping Cart.

!!! Limited Quantities !!!

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

Item # WX2-219796

  • 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 $25.99

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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.

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