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 Guide Gear® Thermaweave Stretch Base Layer Pants

    3 stars
    (26)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $50.00

    In Stock

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

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

    In Stock

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

    4 stars
    (59)
    Buyer's Club $17.99 Non-Member $19.99 Compare at $40.00

    In Stock

  4. Under Armour® ColdGear® Infrared EVO Mock Turtleneck

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

    In Stock

  1. Under Armour® ColdGear® Infrared EVO Leggings

    4 stars
    (12)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!

    In Stock

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

    4 stars
    (34)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    In Stock

  3. 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

  4. 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

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

    5 stars
    (51)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $75.00

    In Stock

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

    4 stars
    (39)
    Buyer's Club $26.99 Non-Member $29.99 Compare at $40.00

    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. Under Armour® Base 3.0™ Crew

     
    Non-Member $74.99 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. 4 Hanes® Flannel Boxers

    4 stars
    (9)
    Buyer's Club $22.49 Non-Member $24.99 Compare at $40.00

    In Stock

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

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

    In Stock

  4. Under Armour® Treestand Base Top, Black

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

    In Stock

  1. Under Armour® Treestand Base Bottoms, Black

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

    In Stock

  2. Under Armour® Base 2.0™ Leggings

     
    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. 32 Degrees HEAT® Base Layer Bottoms

     
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  1. 6-Pk. Guide Gear® Boxer Briefs

    5 stars
    (100)
    Buyer's Club $22.49 Non-Member $24.99 Compare at $38.00

    In Stock

  2. 32 Degrees HEAT® Heat Fleece Top

     
    Buyer's Club $22.49 Non-Member $24.99

    In Stock

  3. 32 Degrees HEAT® Base Layer Crew-neck Top

     
    Buyer's Club $13.49 Non-Member $14.99

    In Stock

  4. 6-Pk. Guide Gear® Pouch Briefs

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

    In Stock

  1. 32 Degrees HEAT® Heat Fleece Bottoms

     
    Buyer's Club $22.49 Non-Member $24.99

    In Stock

  2. Polar King® Thermal Bottoms

     
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

  3. Polar King® Thermal Top

     
    Buyer's Club $17.99 Non-Member $19.99

    In Stock

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

     
    Buyer's Club $44.99 Non-Member $49.99 Compare at $66.00

    In Stock

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

    5 stars
    (11)
    Buyer's Club $22.49 Non-Member $24.99 Compare at $50.00

    In Stock

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

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

    In Stock

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

     
    Buyer's Club $35.99 Non-Member $39.99

    In Stock

  4. 6-Pk. of Guide Gear® Camp Base Boxer Briefs, Camo

    5 stars
    (36)
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

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

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

    In Stock

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

    5 stars
    (21)
    Buyer's Club $22.49 Non-Member $24.99

    In Stock

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

     
    Buyer's Club $22.49 Non-Member $24.99

    In Stock

  4. Carhartt® Base Force Midweight Crew Top

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

    In Stock

  1. Carhartt® Base Force Midweight Bottoms

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

    In Stock

  2. Clam™ Ice Armor™ Base Layer Fleece Top

    4 stars
    (3)
    Buyer's Club $29.69 Non-Member $32.99

    In Stock

  3. Clam™ Ice Armor™ Base Layer Fleece Bottom

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

    In Stock

  4. Terramar® Thermolator Leggings

     
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  1. Terramar® Thermolator 1/2-zip Top

     
    Buyer's Club $26.99 Non-Member $29.99

    In Stock

  2. Scent Blocker® S3® Arctic Fleece Base Layer Long-sleeved Shirt

    5 stars
    (1)
    Buyer's Club $62.99 Non-Member $69.99 Compare at $79.99

    In Stock

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

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

    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. Scent Blocker® Super Skin™ Base Layer Shirt

     
    Buyer's Club $35.99 Non-Member $39.99 Compare at $49.99

    In Stock

  2. 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

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

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

    In Stock

  4. Scent Blocker® Super Skin™ Base Layer Pants

     
    Buyer's Club $35.99 Non-Member $39.99 Compare at $49.99

    In Stock

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Related Products

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

Item # WX2-597480

  • Info

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

Starting at...
Buyer's Club $44.99 Non-Member $49.99

Add to Wishlist

Browning® Hell's Canyon Midweight Base Layer Top. A good day of hunting starts with the right gear!

Your freeze-fighting foundation! Effectively combat cold weather with this Browning® Hell's Canyon Midweight Base Layer Top. Slip it on before your outerwear for increased warmth without extra bulk. Plus, it features Odorsmart antimicrobial technology, which helps control bacteria that causes human odor.

Features:
  • Midweight 100% polyester fabric is ideal for cold conditions
  • Smooth face with fleece inner layer adds comfort
  • Odorsmart antimicrobial technology helps contain human scent
  • Flatlock stitching for additional comfort
  • Athletic cut
  • Mock neck helps lock in heat.

State Size, as available in the Shopping Cart.

Fox Tactical™ ECWCS Polypropylene Long Underwear Bottom

Item # WX2-296589

  • Info

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

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.


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.

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

Item # WX2-223857

4 stars
  • Info

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

Buyer's Club $26.99 Non-Member $29.99 Compare at $50.00

Add to Wishlist

2-Pk. of Guide Gear® Thermaweave Stretch Base Layers form the perfect foundation of protection! SAVE BIG!

Every great trek begins with a solid foundation. Got some adventure on your to-do list? Guide Gear® Thermaweave Base Layer Gear is a great place to start. It's cool, comfortable and helps pull moisture away from the skin, preventing chafing and discomfort.

Flexible stretch fabric moves with you, ensuring that you'll never suffer creases or bunching. Get yours here and you'll be ready for any outdoor escapade!

Back to base:
  • 94/6 cotton / spandex blend
  • Crew-neck collar
  • Stretch-to-fit cuffs and comfort
  • Flat-seam stitching
  • Straight hem. Machine wash / dry. Imported.

State Color and Size, as available in the Shopping Cart below. Order now and start your next adventure off right!

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

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