Base Layer

ScentBlocker Men's Koretec Tech Weight Base Layer Top

Key Features

  • Lightweight stretch polyester
  • Smooth face for easy layering
  • S3® anti-microbial finish
  • Smooth flatlock seams for comfort
  • Set-in sleeves for enhanced mobility
Buyer's Club
$22.49
Non-Member $24.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Lightweight stretch polyester
  • Smooth face for easy layering
  • S3® anti-microbial finish
  • Smooth flatlock seams for comfort
  • Set-in sleeves for enhanced mobility

ScentBlocker Koretec Men's Heavyweight Base Layer Top

Key Features

  • Polyester outer backed with a light fleece lining
  • Smooth polyester face
  • S3® anti-microbial finish
  • Set-in sleeves
  • Smooth flatlock seams for comfort
Buyer's Club
$26.99
Non-Member $29.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Polyester outer backed with a light fleece lining
  • Smooth polyester face
  • S3® anti-microbial finish
  • Set-in sleeves
  • Smooth flatlock seams for comfort

Guide Gear Women's Lightweight Base Layer Top

Key Features

  • 97/3 polyester/spandex
  • Stretch fabric with raglan sleeves
  • Moisture-wicking, fast-drying
  • Thumbholes
  • Tagless label
Buyer's Club
$17.99
Non-Member $19.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 97/3 polyester/spandex
  • Stretch fabric with raglan sleeves
  • Moisture-wicking, fast-drying
  • Thumbholes
  • Tagless label

Carhartt Men's Base Force Midweight Classic Crew Base Layer Top

Key Features

  • 200 GSM 6-oz. 100% polyester
  • Rugged Flex® 4-way stretch fabrication
  • FastDry® wicking technology
  • Waffle-knit interior
  • Anti-odor properties
  • Flatlock seams
  • Tagless label
  • Concealed thumbholes
Club Pricing Applied at Checkout!
Non-Member $29.99 - $39.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 200 GSM 6-oz. 100% polyester
  • Rugged Flex® 4-way stretch fabrication
  • FastDry® wicking technology
  • Waffle-knit interior
  • Anti-odor properties
  • Flatlock seams
  • Tagless label
  • Concealed thumbholes

ScentBlocker Koretec Men's Heavyweight Base Layer Bottoms

Key Features

  • Polyester outer backed with a light fleece lining
  • Smooth polyester face
  • S3® anti-microbial finish
  • Smooth flatlock seams for comfort
  • Tapered legs
  • Elastic waistband
  • Pass-though fly
Buyer's Club
$26.99
Non-Member $29.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Polyester outer backed with a light fleece lining
  • Smooth polyester face
  • S3® anti-microbial finish
  • Smooth flatlock seams for comfort
  • Tapered legs
  • Elastic waistband
  • Pass-though fly

Guide Gear Men's Heavyweight Fleece Base Layer Quarter Zip Top

Key Features

  • 100% polyester
  • Moisture-wicking
  • Raglan sleeves
  • Tagless label
  • YKK® zipper
Buyer's Club
$26.99
Non-Member $29.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 100% polyester
  • Moisture-wicking
  • Raglan sleeves
  • Tagless label
  • YKK® zipper

Carhartt Men's Base Force Midweight Classic Base Layer Bottoms

Key Features

  • 200 GSM 4-oz. 100% polyester
  • Rugged Flex® 4-way stretch fabrication
  • FastDry® wicking technology
  • Waffle-knit interior
  • Anti-odor properties
  • Flatlock seams
  • Concealed Y-stitch waistband
  • Pass-through fly
Club Pricing Applied at Checkout!
Non-Member $29.99 - $39.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 200 GSM 4-oz. 100% polyester
  • Rugged Flex® 4-way stretch fabrication
  • FastDry® wicking technology
  • Waffle-knit interior
  • Anti-odor properties
  • Flatlock seams
  • Concealed Y-stitch waistband
  • Pass-through fly

Guide Gear Men's Lightweight Base Layer Crew Top

Key Features

  • 97/3 polyester/spandex
  • Stretch fabric with raglan sleeves
  • Moisture-wicking, fast-drying
  • Thumbholes
  • Tagless label
Buyer's Club
$17.99
Non-Member $19.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 97/3 polyester/spandex
  • Stretch fabric with raglan sleeves
  • Moisture-wicking, fast-drying
  • Thumbholes
  • Tagless label

Voodoo Tactical Thermal Grid Fleece Base Layer Set

Key Features

  • Dual action thermal grid fleece
  • Quarter-zip turtleneck pullover top
  • YKK zippers
  • Long tail stays tucked in
  • Elastic sleeve cuffs with thumb holes
  • Elastic waist on top and bottom for snug fit
Buyer's Club
$35.99
Non-Member $39.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Dual action thermal grid fleece
  • Quarter-zip turtleneck pullover top
  • YKK zippers
  • Long tail stays tucked in
  • Elastic sleeve cuffs with thumb holes
  • Elastic waist on top and bottom for snug fit

Under Armour Men's Base 4.0 Base Layer Bottoms

Key Features

  • 100% polyester
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Pass-through fly
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $80.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 100% polyester
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Pass-through fly
  • Fitted style
  • Part of the ColdGear collection

ScentBlocker Koretec Men's Tech Weight Base Layer Bottoms.

Key Features

  • Lightweight stretch polyester with smooth face
  • S3® anti-microbial finish
  • Smooth flatlock seams for comfort
  • Elastic waistband
  • Tapered legs
  • Pass-through fly
Buyer's Club
$22.49
Non-Member $24.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Lightweight stretch polyester with smooth face
  • S3® anti-microbial finish
  • Smooth flatlock seams for comfort
  • Elastic waistband
  • Tapered legs
  • Pass-through fly

Under Armour Men's Base 3.0 Base Layer Bottoms

Key Features

  • 78/22 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Pass-through fly
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $70.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 78/22 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Pass-through fly
  • Fitted style
  • Part of the ColdGear collection

U.S. Military Surplus ECWCS Fleece Base Layer Set, New

Key Features

  • U.S. military issue
  • Made in USA by Brooklyn Armed Forces™
  • NSN: 8415-01-641-1272
  • ECWCS Gen III Level 2 mid-weight Base Layer
  • Includes Balaclava, Shirt, and Pants
  • 93/7 polyester/spandex
On-Sale!   Was $74.99
Buyer's Club
$60.29
Non-Member $66.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • U.S. military issue
  • Made in USA by Brooklyn Armed Forces™
  • NSN: 8415-01-641-1272
  • ECWCS Gen III Level 2 mid-weight Base Layer
  • Includes Balaclava, Shirt, and Pants
  • 93/7 polyester/spandex

U.S. Military Surplus Polartec SilkWeight Base Layer Set, New

Key Features

  • U.S. military issue, made in USA
  • NSN: 8415-01-538-8472
  • Includes top and bottoms
  • Polartec® PowerDry® technology
  • SilkWeight® 100% polyester
  • Highly breathable, dries quickly
Buyer's Club
$31.49
Non-Member $34.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • U.S. military issue, made in USA
  • NSN: 8415-01-538-8472
  • Includes top and bottoms
  • Polartec® PowerDry® technology
  • SilkWeight® 100% polyester
  • Highly breathable, dries quickly

Banded Men's Merino Wool Base Layer Bottoms

Key Features

  • Merino wool, 230-gram weight
  • Flatlock seams
  • Moisture-wicking
  • Elastic waist
  • Pass-through fly
  • Athletic cut
Club Pricing Applied at Checkout!
Non-Member $94.99 - $104.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Merino wool, 230-gram weight
  • Flatlock seams
  • Moisture-wicking
  • Elastic waist
  • Pass-through fly
  • Athletic cut

Guide Gear Women's Lightweight Base Layer Bottoms

Key Features

  • 97/3 polyester/spandex
  • Moisture-wicking, fast-drying
  • Gusseted for easy motion
  • Comfortable seams
Buyer's Club
$17.99
Non-Member $19.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 97/3 polyester/spandex
  • Moisture-wicking, fast-drying
  • Gusseted for easy motion
  • Comfortable seams

Under Armour Women's Base 4.0 Base Layer Bottoms

Key Features

  • 81/19 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Wide, flat waistband
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $80.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 81/19 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Wide, flat waistband
  • Fitted style
  • Part of the ColdGear collection

U.S. Military Surplus Fleece Base Layer Set, New

Key Features

  • U.S. military issue, made in USA
  • Heavyweight fleece
  • Moisture-wicking, easy-moving comfort
  • Long-sleeved top and bottom
  • Ribbed cuffs at wrists and ankles
  • Rolled neck, elastic waist
  • New condition
Buyer's Club
$35.99
Non-Member $39.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • U.S. military issue, made in USA
  • Heavyweight fleece
  • Moisture-wicking, easy-moving comfort
  • Long-sleeved top and bottom
  • Ribbed cuffs at wrists and ankles
  • Rolled neck, elastic waist
  • New condition

Hard Core Men's Power-F Base Layer Bottoms

Key Features

  • Soft thermal 100% polyester fleece
  • Lofted backing traps in warmth
  • S3® silver antimicrobial technology
  • Moisture-wicking performance
  • Pass-though fly
Club Pricing Applied at Checkout!
Non-Member $59.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Soft thermal 100% polyester fleece
  • Lofted backing traps in warmth
  • S3® silver antimicrobial technology
  • Moisture-wicking performance
  • Pass-though fly

Under Armour Men's Base 4.0 Base Layer Crew Top

Key Features

  • 81/19 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $80.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 81/19 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection

Under Armour Men's Base 4.0 Base Layer Quarter-zip Top

Key Features

  • 81/19 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $80.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 81/19 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection

Under Armour Men's Base 2.0 Base Layer Crew Top

Key Features

  • 71/29 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $60.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 71/29 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection

Under Armour Men's Base 2.0 Base Layer Bottoms

Key Features

  • 71/29 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Pass-through fly
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $60.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 71/29 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Pass-through fly
  • Fitted style
  • Part of the ColdGear collection

Under Armour Men's Base 3.0 Base Layer Crew Top

Key Features

  • 78/22 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection
Club Pricing Applied at Checkout!
Non-Member $70.00
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 78/22 polyester/elasterell
  • UA Scent Control with Microban®
  • 4-way stretch
  • Moisture-wicking, fast-drying
  • Heat-trapping grid interior
  • Fitted style
  • Part of the ColdGear collection

Badlands Men's Mutton Long-Sleeve Baselayer Top

Key Features

  • 50/50 blend of 190-gram merino wool/polyester
  • Active temperature regulation for all-season use
  • Moisture-wicking properties
  • Anti-microbial, naturally odor-resistant
Club Pricing Applied at Checkout!
Non-Member $74.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 50/50 blend of 190-gram merino wool/polyester
  • Active temperature regulation for all-season use
  • Moisture-wicking properties
  • Anti-microbial, naturally odor-resistant

U.S. Military Surplus Midweight Base Layer Pants, New

Key Features

  • U.S. military issue
  • Made in USA
  • Moisture-wicking polyester
  • Antimicrobial for lasting freshness
  • Flat seam construction resists chafing
  • New condition
Buyer's Club
$20.69
Non-Member $22.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • U.S. military issue
  • Made in USA
  • Moisture-wicking polyester
  • Antimicrobial for lasting freshness
  • Flat seam construction resists chafing
  • New condition

Guide Gear Polartec Power Grid Base Layer Top

Key Features

  • Polartec® Power Grid™ fleece construction
  • Raglan sleeves for freedom of movement
  • Odor-resistant
  • Thumbholes prevent sleeves from riding
  • Tagless neck
Clearance!   Was $54.99
Buyer's Club
$24.79
Non-Member $27.59
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Polartec® Power Grid™ fleece construction
  • Raglan sleeves for freedom of movement
  • Odor-resistant
  • Thumbholes prevent sleeves from riding
  • Tagless neck

ScentLok Men's AMP Lightweight Base Layer Bottoms

Key Features

  • Polyester interlock fabric
  • Carbon Alloy® technology for odor adsorption
  • Engineered carbon for additional layer of odor protection
  • Wicking treatment for moisture control
  • Stretch panels
  • Elastic waistband
  • Easy access horizontal fly
Clearance!   Was $79.99
Buyer's Club
$43.19
Non-Member $47.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • Polyester interlock fabric
  • Carbon Alloy® technology for odor adsorption
  • Engineered carbon for additional layer of odor protection
  • Wicking treatment for moisture control
  • Stretch panels
  • Elastic waistband
  • Easy access horizontal fly

Guide Gear Men's Heatwave Fleece Base Layer Mock Neck Shirt

Key Features

  • 100% polyester microfleece, 104gsm
  • Eclipse™ Heatwave Inner Surface Technology
  • Raglan sleeves
  • Extended tail
  • Tagless label
  • Mock neck
Clearance!   Was $49.99
Buyer's Club
$18.09
Non-Member $20.09
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 100% polyester microfleece, 104gsm
  • Eclipse™ Heatwave Inner Surface Technology
  • Raglan sleeves
  • Extended tail
  • Tagless label
  • Mock neck

Guide Gear Men's Midweight Jersey Base Layer Crew Shirt

Key Features

  • 88/12 polyester/elastane jersey
  • Quick-dry fabrication
  • Raglan sleeves
  • Tagless label
  • Extended tail
  • Thumbholes
Clearance!   Was $29.99
Buyer's Club
$13.49
Non-Member $14.99
ALL CLUB ORDERS $49+ SHIP FREE!

Key Features

  • 88/12 polyester/elastane jersey
  • Quick-dry fabrication
  • Raglan sleeves
  • Tagless label
  • Extended tail
  • Thumbholes