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. 6-Pk. Guide Gear Boxer Briefs

    5 stars
    (112)
    Compare at $38.00 Was $29.99 Non-Member $24.99 Buyer's Club $22.49

    You Save $15.51 (41%)

  2. 6-Pk. Guide Gear Pouch Briefs

    5 stars
    (90)
    Compare at $38.00 Was $24.99 Non-Member $19.99 Buyer's Club $17.99

    You Save $20.01 (53%)

  3. Guide Gear Performance T-shirt

     
    Compare at $25.00 Non-Member $14.99 Buyer's Club $13.49

    You Save $11.51 (46%)

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

    5 stars
    (41)
    Compare at $57.00 Was $34.99 Non-Member $29.99 Buyer's Club $26.99

    You Save $30.01 (53%)

  1. 3-Pk. Walls Camo Boxers, Mossy Oak Break-Up

    2 stars
    (1)
    Compare at $42.00 Non-Member $19.99 Buyer's Club $17.99

    You Save $24.01 (57%)

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

    5 stars
    (23)
    Compare at $42.00 Was $29.99 Non-Member $24.99 Buyer's Club $22.49

    You Save $19.51 (46%)

  3. Polar King Thermal Top

    3 stars
    (5)
    Clearance $19.99
  4. 32 Degrees HEAT Base Layer Crew-neck Top

    5 stars
    (14)
    Non-Member $19.99 Buyer's Club $17.99
  1. Under Armour Camo Boxer Jock

     
    Non-Member $29.99 Buyer's Club Discount Applied at Checkout!
  2. 32 Degrees HEAT Base Layer Bottoms

    4 stars
    (16)
    Non-Member $19.99 Buyer's Club $17.99
  3. Polar King Thermal Bottoms

    3 stars
    (5)
    Clearance $19.99
  4. Men's Guide Gear Silk Base Layer Bottom, Black

    4 stars
    (54)
    Compare at $40.00 Was $34.99 Non-Member $29.99 Buyer's Club $26.99

    You Save $13.01 (33%)

  1. Under Armour ColdGear Infrared EVO Leggings

    4 stars
    (17)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!
  2. Guide Gear 10-oz. Brown Poly-fleece Bottoms

    5 stars
    (69)
    Compare at $40.00 Was $39.99 Non-Member $19.99 Buyer's Club $17.99

    You Save $22.01 (55%)

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

    5 stars
    (72)
    Compare at $40.00 Was $24.99 Non-Member $19.99 Buyer's Club $17.99

    You Save $22.01 (55%)

  4. Carhartt Irregular Base Force Super PT Bottoms

    4 stars
    (2)
    Compare at $44.99 Was $24.99 Non-Member $19.99 Buyer's Club $17.99

    You Save $27.00 (60%)

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

    4 stars
    (28)
    Compare at $32.00 Was $24.99 Clearance $14.99

    You Save $17.01 (53%)

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

    4 stars
    (21)
    Compare at $32.00 Was $24.99 Clearance $14.99

    You Save $17.01 (53%)

  3. Under Armour ColdGear Infrared EVO Mock Turtleneck

    5 stars
    (21)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!
  4. Terramar Thermolator Leggings

     
    Non-Member $19.99 Buyer's Club $17.99
  1. Men's Guide Gear Silk Base Layer Crewneck, Black

    4 stars
    (47)
    Compare at $40.00 Was $34.99 Non-Member $29.99 Buyer's Club $26.99

    You Save $13.01 (33%)

  2. Carhartt Base Force Midweight Crew Top

     
    Non-Member $34.99 Buyer's Club $31.49
  3. 32 Degrees HEAT Heat Fleece Top

    5 stars
    (2)
    Clearance $14.99
  4. Guide Gear® 10-oz. Poly-fleece Union Suit, Brown

    5 stars
    (71)
    Compare at $75.00 Was $34.99 Non-Member $29.99 Buyer's Club $26.99

    You Save $48.01 (64%)

  1. Carhartt Base Force Midweight Bottoms

     
    Non-Member $34.99 Buyer's Club $31.49
  2. 32 Degrees HEAT Heat Fleece Bottoms

    4 stars
    (7)
    Clearance $19.99
  3. Men's Under Armour ColdGear EVO Base Layer Mock Shirt

    5 stars
    (1)
    Non-Member $57.99 Buyer's Club $52.19
  4. 2-Pk. of Guide Gear® Thermaweave Stretch Base Layer Tops

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

    You Save $23.01 (46%)

  1. Terramar Thermolator 1/2-zip Top

    5 stars
    (1)
    Non-Member $19.99 Buyer's Club $17.99
  2. Under Armour Base 2.0 Crew

    5 stars
    (4)
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!
  3. Outdoor Research Sequence Leggings

     
    Non-Member $49.99 Buyer's Club Discount Applied at Checkout!
  4. Browning® Hell's Canyon Midweight Base Layer Top, Realtree Xtra® Camo

    3 stars
    (2)
    Compare at $66.00 Was $59.99 Clearance $39.99

    You Save $26.01 (39%)

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

    3 stars
    (1)
    Non-Member $57.99 Buyer's Club $52.19
  2. 2-Pk. of Guide Gear® Thermaweave Stretch Base Layer Pants

    3 stars
    (32)
    Compare at $50.00 Was $29.99 Clearance $19.99

    You Save $30.01 (60%)

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

    5 stars
    (1)
    Non-Member $44.99 Buyer's Club $40.49
  4. Outdoor Research Sequence Long-sleeved Crew

     
    Non-Member $49.99 Buyer's Club Discount Applied at Checkout!
  1. Carhartt Force Super Cold Weather Thermal Underwear Shirt, Black

    5 stars
    (1)
    Non-Member $44.99 Buyer's Club $40.49
  2. 4 Hanes Flannel Boxers

    4 stars
    (18)
    Compare at $40.00 Was $24.99 Clearance $14.99

    You Save $25.01 (63%)

  3. Under Armour® Base 3.0™ Crew

    5 stars
    (1)
    Non-Member $74.99 Buyer's Club Discount Applied at Checkout!
  1. Scent Blocker® Super Skin™ Base Layer Pants

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

    You Save $14.00 (28%)

  2. Scent Blocker® Super Skin™ Base Layer Shirt

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

    You Save $14.00 (28%)

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

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

    You Save $15.00 (25%)

  4. Clam™ Ice Armor Merino Wool Blend Base Layer Bottom

     
    Non-Member $54.99 Buyer's Club Discount Applied at Checkout!
  1. Scent Blocker® S3® Arctic Fleece Base Layer Pants

     
    Non-Member $79.99 Buyer's Club $71.99
  2. WSI® Microtech Neon Green Fitted Long-sleeved Shirt

    3 stars
    (1)
    Non-Member $24.99 Buyer's Club $22.49
  3. Carhartt® Heavyweight Crewneck Shirt

    5 stars
    (3)
    Non-Member $29.99 Buyer's Club Discount Applied at Checkout!
  4. Carhartt® Base Force™ Cold Weather Weight Long Underwear Bottoms, Black

     
    Non-Member $44.99 Buyer's Club Discount Applied at Checkout!
1-48 of 63
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5.11 Tactical® Performance Winter Mock

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  • Info

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

Starting at...
Non-Member $49.99 Buyer's Club Discount Applied at Checkout!

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5.11 Tactical® Performance Winter Mock Underwear Underwear that stretches and twists with your body for unrestricted movement!

5.11 Tactical® updated their thermal protection mock underwear for Fall, improving fit, fabric and the overall function of the garment. The French Terry knit underwear base layer has a textured face which traps the air generated from your body heat, keeping you warm in colder climates. The poly/nylon/ spandex blend is antimicrobial and wicks perspiration in higher aerobic activity which is critical in colder outdoor environments.

We've designed the Performance Winter Mock Underwear with a base layer fit and with 16% spandex it provides incredible flexibility and range of motion. Flat lock seams reduce chafing and provide the perfect thermal underwear base layer for wear under body armor. We've also re-engineered the cuff and neck fit which will not allow heated air to escape. Equally important the new neck fit will provide a clean, professional appearance and works well with all embroidery applications. You will discover The Performance Winter Mock is the ultimate piece of thermal protection equipment for operational use as well as hunting and other outdoor activities. Machine wash / dry underwear. Imported.

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Scent-Lok Base Layer Lightweight Bottom, Black

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Build a scent-proof base with Scent-Lok® Base Layer Lightweight Bottoms.

It all starts here! Your best bet for scent-free performance and comfort starts with Scent-Lok Lightweight Base Layers featuring advanced Carbon Alloy® scent-blocking technology.

Pass the sniff test:
  • Lightweight, moisture-wicking fabric helps keep you cool, dry and comfortable
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Polar King Thermal Bottoms

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

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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!

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

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4 stars
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  • Info

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

Compare at $32.00 Was $24.99 Clearance $14.99

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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
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  • Full cut for a comfortable fit
  • Shrinkage controlled for lasting size and shape.

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

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