Underwear & Base Layer

Shop The Large Selection Of All WSI Underwear & Base Layer At Rock Bottom Low Prices...Guaranteed at Sportsman's Guide

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  1. 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

  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. WSI® WikMax HEATR® 1/4-zip Top

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

    In Stock

  4. 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

  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. WSI® Microtech Neon Green Fitted Long-sleeved Shirt

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

    In Stock

  3. Men's WSI® Compression Shorts

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

    In Stock

  4. 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

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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

Add to Wishlist

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.

WSI® Microtech Neon Green Fitted Long-sleeved Shirt

Item # WX2-580933

  • Info

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

Starting at...
Buyer's Club $17.99 Non-Member $19.99

Add to Wishlist

WSI® Microtech Neon Green Fitted Long-sleeved 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 bankrupt your franchise, so to speak. It's highly affordable, and pro athletes swear by it, for good reason... it performs.

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

State Size, as available in the Shopping Cart. Order yours today!

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

Item # WX2-298063

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 $50.00

Add to Wishlist

New U.S. Military Surplus Polartec® X-static® Base Layer. BIG BUCKS OFF!

An advanced Base Layer for your next mission! Worn next to the skin, this non-bulky Base Layer System wicks away moisture and dries fast. Used in the U.S. Military as part of their PCU (Protective Combat Uniform).

Also used by Olympic athletics and NASA astronauts. Polartec® Power Dry® X-static® fibers are permanently bonded with a layer of antimicrobial 99.9% pure metallic silver. Permanently inhibits the growth of bacteria and fungi. Machine wash / dry. Made right here in the U.S.A! 

Condition: all are brand new, never issued. State Size, as available in the Shopping Cart. Get back to basics.

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

Item # WX2-427604

  • Info

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

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

Add to Wishlist

Carhartt® Base ForceTM Cool Weather Weight Crewneck Shirt keeps you comfortable and fresh while you work up a sweat.

Wear this specially-treated, moisture-wicking Shirt on its own when it's crisp outdoors or chilly indoors... or as a base layer when the temps are cold, inside or out.

On the job:
  • 4.5-oz. 100% polyester midweight knit
  • Force™ fabric wicks away moisture, has an antimicrobial finish so you stay fresh
  • Smooth flat lock seams for comfort
  • Drop tail adds coverage, keeps out chill
  • Tagless, no-scratch neck label
  • Carhartt® logo printed on bottom hem, Carhartt Force logo on back neck
  • Machine wash / dry. Imported.

State Size, as available in the Shopping Cart.

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