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Men's Underwear

Narrow Category:  Men's Boxers & Briefs   Men's Heavyweight Underwear   Men's Lightweight Underwear   Men's Midweight Underwear
OK, it is the underwear section, but let's look at this honestly; this stuff is purely for business. These are the important base layers that will keep you warm out on the trail by way of anti-wicking materials and use of the best quality fabrics. It is super important that you have a really good base layer working for you, especially when things are looking a little chillier out there. We've got some casual pieces and some that are for your more demanding day trips.
Ex Officio Men's Give-N-Go Boxer 12412171 (Ex Officio)
Ex Officio Men's Give-N-Go Sport Mesh 6" Boxer Brief 12412336 (Ex Officio)
Ex Officio Men's Give-N-Go Printed Boxer 12452346 (Ex Officio)
Ex Officio Men's Give-N-Go Brief 12412173 (Ex Officio)
Ex Officio Men's Give-N-Go Boxer
12412171
Ex Officio Men's Give-N-Go Sport Mesh 6" Boxer Brief
12412336
Ex Officio Men's Give-N-Go Printed Boxer
12452346
Ex Officio Men's Give-N-Go Brief
12412173
$25.95
 
Ex Officio Men's Give-N-Go Boxer 12412171 (Ex Officio)
$29.95
 
Ex Officio Men's Give-N-Go Sport Mesh 6" Boxer Brief 12412336 (Ex Officio)
$29.95
 
Ex Officio Men's Give-N-Go Printed Boxer 12452346 (Ex Officio)
$19.95
 
Ex Officio Men's Give-N-Go Brief 12412173 (Ex Officio)
Ex Officio Men's Give-N-Go Boxer Brief 12412172 (Ex Officio)
Ex Officio Men's Give-N-Go Sports Mesh Boxer Briefs--9" 12412335 (Ex Officio)
Patagonia Men's Capilene Daily Boxers 32489 (Patagonia)
Smartwool Men's Merino 150 Pattern Boxer Brief SW014012 (Smartwool)
Ex Officio Men's Give-N-Go Boxer Brief
12412172
Ex Officio Men's Give-N-Go Sports Mesh Boxer Briefs--9"
12412335
Patagonia Men's Capilene Daily Boxers
32489
Smartwool Men's Merino 150 Pattern Boxer Brief
SW014012
$25.95
 
Ex Officio Men's Give-N-Go Boxer Brief 12412172 (Ex Officio)
$31.95
 
Ex Officio Men's Give-N-Go Sports Mesh Boxer Briefs--9" 12412335 (Ex Officio)
$35.00
 
Patagonia Men's Capilene Daily Boxers 32489 (Patagonia)
$44.95
 
Smartwool Men's Merino 150 Pattern Boxer Brief SW014012 (Smartwool)
Patagonia Men's Capilene Daily Boxers 32488 (Patagonia)
Patagonia Men's Capilene Thermal Weight Zip-Neck Top 43657 (Patagonia)
Patagonia Men's Capilene Thermal Weight Long Underwear Bottoms 43687 (Patagonia)
Terramar Sports Men's Climasense 2.0 Thermolator Top W7543 (Terramar Sports)
Patagonia Men's Capilene Daily Boxers
32488
Patagonia Men's Capilene Thermal Weight Zip-Neck Top
43657
Patagonia Men's Capilene Thermal Weight Long Underwear Bottoms
43687
Terramar Sports Men's Climasense 2.0 Thermolator Top
W7543
$35.00
 
Patagonia Men's Capilene Daily Boxers 32488 (Patagonia)
$99.00
 
Patagonia Men's Capilene Thermal Weight Zip-Neck Top 43657 (Patagonia)
$89.00
 
Patagonia Men's Capilene Thermal Weight Long Underwear Bottoms 43687 (Patagonia)
$34.95
 
Terramar Sports Men's Climasense 2.0 Thermolator Top W7543 (Terramar Sports)
Patagonia Men's Capilene Thermal Weight Crew Neck Shirt 43647 (Patagonia)
Patagonia Men's Capilene Lightweight Long Underwear Bottoms 45681 (Patagonia)
Patagonia Men's Long-Sleeved Capilene Daily Graphic T-Shirt 45280 (Patagonia)
Patagonia Men's Capilene Lightweight T-Shirt 45651 (Patagonia)
Patagonia Men's Capilene Thermal Weight Crew Neck Shirt
43647
Patagonia Men's Capilene Lightweight Long Underwear Bottoms
45681
Patagonia Men's Long-Sleeved Capilene Daily Graphic T-Shirt
45280
Patagonia Men's Capilene Lightweight T-Shirt
45651
$89.00
 
Patagonia Men's Capilene Thermal Weight Crew Neck Shirt 43647 (Patagonia)
$49.00
 
Patagonia Men's Capilene Lightweight Long Underwear Bottoms 45681 (Patagonia)
$49.00
 
Patagonia Men's Long-Sleeved Capilene Daily Graphic T-Shirt 45280 (Patagonia)
$39.00
 
Patagonia Men's Capilene Lightweight T-Shirt 45651 (Patagonia)
Icebreaker Men's Everyday Short Sleeve Crewe 101267 (Icebreaker)
Patagonia Men's Capilene Daily T-Shirt 45270 (Patagonia)
Patagonia Men's Long-Sleeved Capilene Daily T-Shirt 45260 (Patagonia)
Xo Skin Men's 1.0 Short Sleeve Heathered Loose Fit Shirt 100002 (Xo Skin)
Icebreaker Men's Everyday Short Sleeve Crewe
101267
Patagonia Men's Capilene Daily T-Shirt
45270
Patagonia Men's Long-Sleeved Capilene Daily T-Shirt
45260
Xo Skin Men's 1.0 Short Sleeve Heathered Loose Fit Shirt
100002
$60.00
 
Icebreaker Men's Everyday Short Sleeve Crewe 101267 (Icebreaker)
$29.00
 
Patagonia Men's Capilene Daily T-Shirt 45270 (Patagonia)
$39.00
 
Patagonia Men's Long-Sleeved Capilene Daily T-Shirt 45260 (Patagonia)
$78.95
 
Xo Skin Men's 1.0 Short Sleeve Heathered Loose Fit Shirt 100002 (Xo Skin)
Icebreaker Men's Everyday Long Sleeve Crew Shirt 101261 (Icebreaker)
Xo Skin Men's 4.0 Pulse Compression Capris 400002 (Xo Skin)
Patagonia Men's Capilene Midweight Zip-Neck Thermal Shirt 44445 (Patagonia)
Patagonia Men's Capilene Midweight Long Underwear Bottoms 44485 (Patagonia)
Icebreaker Men's Everyday Long Sleeve Crew Shirt
101261
Xo Skin Men's 4.0 Pulse Compression Capris
400002
Patagonia Men's Capilene Midweight Zip-Neck Thermal Shirt
44445
Patagonia Men's Capilene Midweight Long Underwear Bottoms
44485
$70.00
 
Icebreaker Men's Everyday Long Sleeve Crew Shirt 101261 (Icebreaker)
$84.95
 
Xo Skin Men's 4.0 Pulse Compression Capris 400002 (Xo Skin)
$69.00
 
Patagonia Men's Capilene Midweight Zip-Neck Thermal Shirt 44445 (Patagonia)
$59.00
 
Patagonia Men's Capilene Midweight Long Underwear Bottoms 44485 (Patagonia)
Under Armour Men's UA Base 2.0 Crew Neck Long Sleeve Top/Shirt 1281080 (Under Armour)
Smartwool Men's NTS Mid 250 Zip T Top NP603 (Smartwool)
Patagonia Men's Capilene Midweight Crew Neck Shirt 44425 (Patagonia)
Smartwool Men's NTS Mid 250 Crew Neck Shirt NP600 (Smartwool)
Under Armour Men's UA Base 2.0 Crew Neck Long Sleeve Top/Shirt
1281080
Smartwool Men's NTS Mid 250 Zip T Top
NP603
Patagonia Men's Capilene Midweight Crew Neck Shirt
44425
Smartwool Men's NTS Mid 250 Crew Neck Shirt
NP600
$54.95
 
Under Armour Men's UA Base 2.0 Crew Neck Long Sleeve Top/Shirt 1281080 (Under Armour)
$99.95
 
Smartwool Men's NTS Mid 250 Zip T Top NP603 (Smartwool)
$59.00
 
Patagonia Men's Capilene Midweight Crew Neck Shirt 44425 (Patagonia)
$94.95
 
Smartwool Men's NTS Mid 250 Crew Neck Shirt NP600 (Smartwool)
Icebreaker Everyday Leggings with Fly 101266 (Icebreaker)
Xo Skin Men's 1.0 Short Sleeve Loose Fit Shirt 100001 (Xo Skin)
Xo Skin Men's 2.0 3/4 Sleeve Form Fit Crew Shirt 200005 (Xo Skin)
Smartwool Men's Merino 150 Boxer Brief SW014011 (Smartwool)
Icebreaker Everyday Leggings with Fly
101266
Xo Skin Men's 1.0 Short Sleeve Loose Fit Shirt
100001
Xo Skin Men's 2.0 3/4 Sleeve Form Fit Crew Shirt
200005
Smartwool Men's Merino 150 Boxer Brief
SW014011
$70.00
 
Icebreaker Everyday Leggings with Fly 101266 (Icebreaker)
$78.95
 
Xo Skin Men's 1.0 Short Sleeve Loose Fit Shirt 100001 (Xo Skin)
$83.95
 
Xo Skin Men's 2.0 3/4 Sleeve Form Fit Crew Shirt 200005 (Xo Skin)
$44.95
 
Smartwool Men's Merino 150 Boxer Brief SW014011 (Smartwool)
Terramar Sports Men's Mesh Pro Boxer-6" W8097 (Terramar Sports)
Smartwool Men's NTS Micro 150 Boxer Brief SW0NP701 (Smartwool)
Icebreaker Men's Anatomica Boxers With Fly Stripe 102207 (Icebreaker)
Smartwool Men's NTS Micro 150 Pattern Boxer Brief SW0NP711 (Smartwool)
Terramar Sports Men's Mesh Pro Boxer-6"
W8097
Smartwool Men's NTS Micro 150 Boxer Brief
SW0NP701
Icebreaker Men's Anatomica Boxers With Fly Stripe
102207
Smartwool Men's NTS Micro 150 Pattern Boxer Brief
SW0NP711
$17.95
 
Terramar Sports Men's Mesh Pro Boxer-6" W8097 (Terramar Sports)
$47.95
 
Smartwool Men's NTS Micro 150 Boxer Brief SW0NP701 (Smartwool)
$39.99
 
Icebreaker Men's Anatomica Boxers With Fly Stripe 102207 (Icebreaker)
$49.95
 
Smartwool Men's NTS Micro 150 Pattern Boxer Brief SW0NP711 (Smartwool)
Icebreaker Men's Everyday Long Sleeve Half Zip Shirt 101259 (Icebreaker)
Xo Skin Men's 4.0 Pulse Compression Shorts 400001 (Xo Skin)
Terramar Sports Men's Silk Underwear L/S Top S481 (Terramar Sports)
Terramar Sports Men's EC2 Silk Underwear Bottoms S483 (Terramar Sports)
Icebreaker Men's Everyday Long Sleeve Half Zip Shirt
101259
Xo Skin Men's 4.0 Pulse Compression Shorts
400001
Terramar Sports Men's Silk Underwear L/S Top
S481
Terramar Sports Men's EC2 Silk Underwear Bottoms
S483
$80.00
 
Icebreaker Men's Everyday Long Sleeve Half Zip Shirt 101259 (Icebreaker)
$74.95
 
Xo Skin Men's 4.0 Pulse Compression Shorts 400001 (Xo Skin)
$49.95
 
Terramar Sports Men's Silk Underwear L/S Top S481 (Terramar Sports)
$49.95
 
Terramar Sports Men's EC2 Silk Underwear Bottoms S483 (Terramar Sports)
Terramar Sports Men's 1.0 Tech Skins Tall Bottoms W8347T (Terramar Sports)
Xo Skin Men's 2.0 Long Sleeve Form Fit Crew Shirt 200007 (Xo Skin)
Xo Skin Men's 2.0 Long Sleeve Form Fit V-Neck Shirt 200008 (Xo Skin)
Xo Skin Men's 2.0 3/4 Sleeve Form Fit V-Neck Shirt 200006 (Xo Skin)
Terramar Sports Men's 1.0 Tech Skins Tall Bottoms
W8347T
Xo Skin Men's 2.0 Long Sleeve Form Fit Crew Shirt
200007
Xo Skin Men's 2.0 Long Sleeve Form Fit V-Neck Shirt
200008
Xo Skin Men's 2.0 3/4 Sleeve Form Fit V-Neck Shirt
200006
$21.95
 
Terramar Sports Men's 1.0 Tech Skins Tall Bottoms W8347T (Terramar Sports)
$88.95
 
Xo Skin Men's 2.0 Long Sleeve Form Fit Crew Shirt 200007 (Xo Skin)
$88.95
 
Xo Skin Men's 2.0 Long Sleeve Form Fit V-Neck Shirt 200008 (Xo Skin)
$83.95
 
Xo Skin Men's 2.0 3/4 Sleeve Form Fit V-Neck Shirt 200006 (Xo Skin)
Xo Skin Men's 2.0 Short Sleeve Form Fit Crew Shirt 200003 (Xo Skin)
Smartwool Men's NTS Mid 250 Crew Neck Shirt SW0NP600 (Smartwool)
Xo Skin Men's 2.0 Sleeveless Form Fit V-Neck Shirt 200002 (Xo Skin)
Xo Skin Men's 2.0 Sleeveless Form Fit Shirt 200001 (Xo Skin)
Xo Skin Men's 2.0 Short Sleeve Form Fit Crew Shirt
200003
Smartwool Men's NTS Mid 250 Crew Neck Shirt
SW0NP600
Xo Skin Men's 2.0 Sleeveless Form Fit V-Neck Shirt
200002
Xo Skin Men's 2.0 Sleeveless Form Fit Shirt
200001
$78.95
 
Xo Skin Men's 2.0 Short Sleeve Form Fit Crew Shirt 200003 (Xo Skin)
$94.95
 
Smartwool Men's NTS Mid 250 Crew Neck Shirt SW0NP600 (Smartwool)
$65.95
 
Xo Skin Men's 2.0 Sleeveless Form Fit V-Neck Shirt 200002 (Xo Skin)
$65.95
 
Xo Skin Men's 2.0 Sleeveless Form Fit Shirt 200001 (Xo Skin)
Hot Chillys Men's Pepper Bi-Ply Crewneck PB3071 (Hot Chillys)
Xo Skin Men's 2.0 Short Sleeve Form Fit V-Neck Shirt 200004 (Xo Skin)
Under Armour Men's UA Base 2.0 Leggings 1281108 (Under Armour)
Smartwool Men's NTS Mid 250 Bottoms NP605 (Smartwool)
Hot Chillys Men's Pepper Bi-Ply Crewneck
PB3071
Xo Skin Men's 2.0 Short Sleeve Form Fit V-Neck Shirt
200004
Under Armour Men's UA Base 2.0 Leggings
1281108
Smartwool Men's NTS Mid 250 Bottoms
NP605
$34.95
 
Hot Chillys Men's Pepper Bi-Ply Crewneck PB3071 (Hot Chillys)
$78.95
 
Xo Skin Men's 2.0 Short Sleeve Form Fit V-Neck Shirt 200004 (Xo Skin)
$54.95
 
Under Armour Men's UA Base 2.0 Leggings 1281108 (Under Armour)
$94.95
 
Smartwool Men's NTS Mid 250 Bottoms NP605 (Smartwool)
Hot Chillys Men's Pepper Bi-Ply Bottom PB3073 (Hot Chillys)
Hot Chillys Men's Micro-Elite Chamois Boot Tech Tight HC9633 (Hot Chillys)
Volcom Men's First Layer Crew Neck Long Sleeve Thermal Shirt G2151600 (Volcom)
Icebreaker Mens Oasis Long Sleeve Hood Top 100478 (Icebreaker)
Hot Chillys Men's Pepper Bi-Ply Bottom
PB3073
Hot Chillys Men's Micro-Elite Chamois Boot Tech Tight
HC9633
Volcom Men's First Layer Crew Neck Long Sleeve Thermal Shirt
G2151600
Icebreaker Mens Oasis Long Sleeve Hood Top
100478
$34.95
 
Hot Chillys Men's Pepper Bi-Ply Bottom PB3073 (Hot Chillys)
$44.95
 
Hot Chillys Men's Micro-Elite Chamois Boot Tech Tight HC9633 (Hot Chillys)
$59.95
 
Volcom Men's First Layer Crew Neck Long Sleeve Thermal Shirt G2151600 (Volcom)
$110.00
 
Icebreaker Mens Oasis Long Sleeve Hood Top 100478 (Icebreaker)

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