Men's Base Layer Tops - Activewear
gym, fitness, workout, sports clothing

Clothes you can move freely and feel comfortable in while pushing your physical limits.


ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
On sale - now $17.99 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
On sale - now $21.99 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
On sale - now $23.99 - was $39.95

Carhartt Men
Carhartt Men's Base Force Extremes Lightweight SS T-Shirt
$24.99

Under Armour Men
Under Armour Men's UA Base 1.0 Crew Top
On sale - now $28.99 - was $44.95

Patagonia Men
Patagonia Men's Capilene Daily T-Shirt
$29

Patagonia Men
Patagonia Men's Capilene Daily T-Shirt
$29

Patagonia Men
Patagonia Men's Capilene Daily T-Shirt
$29

Patagonia Men
Patagonia Men's Capilene Daily T-Shirt
$29

Patagonia Men
Patagonia Men's Capilene Daily T-Shirt
$29

Helly Hansen Men
Helly Hansen Men's Tech Crew
$29.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $29.96 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $29.96 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $29.96 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
On sale - now $29.96 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
On sale - now $29.96 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
On sale - now $29.96 - was $39.95

NRS Men
NRS Men's H2Core Silkweight LS Shirt
On sale - now $29.96 - was $39.95

Carhartt Men
Carhartt Men's Base Force Cotton Super Cold Weather Crewneck Top
$29.99

Carhartt Men
Carhartt Men's Base Force Cotton Super Cold Weather Crewneck Top
$29.99

Carhartt Men
Carhartt Men's Base Force Extremes Lightweight Crewneck
$29.99

Under Armour Men
Under Armour Men's UA ColdGear Armour Mock Neck Top
On sale - now $31.99 - was $49.95

Under Armour Men
Under Armour Men's UA ColdGear Armour Mock Neck Top
On sale - now $31.99 - was $49.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $32.99 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
On sale - now $32.99 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $33.99 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $33.99 - was $39.95

Men
Men's H2 Core Silkweight SS Shirt
$34.95

Men
Men's H2 Core Silkweight SS Shirt
$34.95

Sherpa Men
Sherpa Men's Rinchen SS Tee
$34.95

Sherpa Men
Sherpa Men's Rinchen SS Tee
$34.95

Under Armour Men
Under Armour Men's UA Base 2.0 Crew Top
On sale - now $35.99 - was $54.95

ExOfficio Men
ExOfficio Men's Give-and-Go Performance Base Layer Crew Neck Top
On sale - now $37.99 - was $59.95

ExOfficio Men
ExOfficio Men's Give-and-Go Performance Base Layer Crew Neck Top
On sale - now $37.99 - was $59.95

Under Armour Men
Under Armour Men's UA Base 2.0 1/4 Zip Top
On sale - now $38.99 - was $59.95

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Graphic T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Lightweight T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Lightweight T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Lightweight T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Lightweight T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Lightweight T-Shirt
$39

Patagonia Men
Patagonia Men's Capilene Lightweight T-Shirt
$39

Helly Hansen Men
Helly Hansen Men's HH Lifa Stripe Crew Top
$39.95

Helly Hansen Men
Helly Hansen Men's HH Lifa Stripe Crew Top
$39.95

NRS Men
NRS Men's H2 Core Silkweight LS Shirt
$39.95

NRS Men
NRS Men's H2 Core Silkweight LS Shirt
$39.95

NRS Men
NRS Men's H2 Core Silkweight LS Shirt
$39.95

Sherpa Men
Sherpa Men's Rinchen LS Tee
$39.95

Sherpa Men
Sherpa Men's Rinchen LS Tee
$39.95

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Crewneck
$39.99

Obermeyer Transport Tech Baselayer Top
Obermeyer Transport Tech Baselayer Top
On sale - now $40.99 - was $64.5

Terramar Men
Terramar Men's Ecolator CS 3.0 Long Sleeve Crew Top
On sale - now $41.99 - was $50

Under Armour Men
Under Armour Men's ColdGear Infrared Evo Crew
On sale - now $41.99 - was $64.95

Under Armour Men
Under Armour Men's ColdGear Infrared Evo Crew
On sale - now $41.99 - was $64.95

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Camo Crewneck
$44.99

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Quarter Zip Top
$44.99

Mammut Men
Mammut Men's Go Dry Zip Longsleeve
On sale - now $44.99 - was $69.95

Under Armour Men
Under Armour Men's UA ColdGear Infrared Devo 1/4 Zip
On sale - now $44.99 - was $79.95

Icebreaker Men
Icebreaker Men's Anatomica Tank
On sale - now $45 - was $60

Icebreaker Men
Icebreaker Men's Anatomica Tank
On sale - now $45 - was $60

Smartwool Men
Smartwool Men's NTS Micro 150 SS Henley
On sale - now $45.99 - was $84.95

Pearl Izumi Men
Pearl Izumi Men's Transfer LS Baselayer Top
On sale - now $48.71 - was $64.95

Under Armour Men
Under Armour Men's Base 3.0 Crew Top
On sale - now $48.99 - was $74.95

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved Graphic T-Shirt
$49

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved Graphic T-Shirt
$49

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved Graphic T-Shirt
$49

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved Graphic T-Shirt
$49

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved Graphic T-Shirt
$49

Patagonia Men
Patagonia Men's Capilene Daily Long-Sleeved Graphic T-Shirt
$49

Patagonia Men
Patagonia Men's Capilene Lightweight Crew
$49

Patagonia Men
Patagonia Men's Capilene Lightweight Crew
$49

Patagonia Men
Patagonia Men's Capilene Lightweight Crew
$49

Patagonia Men
Patagonia Men's Capilene Lightweight Crew
$49

Patagonia Men
Patagonia Men's Capilene Lightweight Crew
$49

NRS Men
NRS Men's H2Core Silkweight Hoodie
$49.95

NRS Men
NRS Men's H2Core Silkweight Hoodie
$49.95

NRS Men
NRS Men's H2Core Silkweight Hoodie
$49.95

Sherpa Men
Sherpa Men's Rinchen Zip Tee
$49.95

Sherpa Men
Sherpa Men's Rinchen Zip Tee
$49.95

The North Face Men
The North Face Men's Warm L/S Crew Neck
$49.95

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Quarter Zip Top
$49.99

Carhartt Men
Carhartt Men's Base Force Extremes Super Cold Weather Crewneck
$49.99

Smartwool Men
Smartwool Men's PhD Light LS Top
On sale - now $49.99 - was $84.95

Icebreaker Men
Icebreaker Men's Everyday LS Half Zip
On sale - now $51.99 - was $80

Under Armour Men
Under Armour Men's Base 3.0 Crew Top
On sale - now $51.99 - was $74.95

Rab Men
Rab Men's Merino+ 120 SS Crew
On sale - now $52.46 - was $69.95

Rab Men
Rab Men's Merino+ 120 SS Crew
On sale - now $52.46 - was $69.95

Rab Men
Rab Men's Merino+ 120 SS Crew
On sale - now $52.46 - was $69.95

Rab Men
Rab Men's Merino+ 120 SS Crew
On sale - now $52.46 - was $69.95

Icebreaker Men
Icebreaker Men's Anatomica SS V Neck Top
On sale - now $52.5 - was $70

Icebreaker Men
Icebreaker Men's Anatomica SS V Neck Top
On sale - now $52.5 - was $70

Icebreaker Men
Icebreaker Men's Everyday LS Crewe
On sale - now $52.5 - was $70

Icebreaker Men
Icebreaker Men's Everyday LS Crewe
On sale - now $52.5 - was $70

Helly Hansen Men
Helly Hansen Men's HH Warm Ice Crew Top
On sale - now $53.99 - was $90

Smartwool Men
Smartwool Men's PhD Light LS Top
On sale - now $53.99 - was $84.95

Under Armour Men
Under Armour Men's UA Base 2.0 Crew Top
$54.95

Carhartt Men
Carhartt Men's Base Force Extremes Super Cold Weather Quarter Zip Top
$54.99

Under Armour Men
Under Armour Men's Base 4.0 Crew Top
On sale - now $54.99 - was $84.95

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
On sale - now $57.99 - was $69

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
On sale - now $57.99 - was $69

Columbia Men
Columbia Men's Heavyweight II Long Sleeve Half Zip
On sale - now $58.99 - was $70

Patagonia Men
Patagonia Men's Capilene Midweight Crew
$59

Patagonia Men
Patagonia Men's Capilene Midweight Crew
$59

Patagonia Men
Patagonia Men's Capilene Midweight Crew
$59

Patagonia Men
Patagonia Men's Capilene Midweight Crew
$59

The North Face Men
The North Face Men's Warm L/S Zip Neck
$59.95

The North Face Men
The North Face Men's Warm L/S Zip Neck
$59.95

Pearl Izumi Men
Pearl Izumi Men's Transfer Wool SS Cycling Baselayer
On sale - now $59.96 - was $79.95

Icebreaker Men
Icebreaker Men's Tech T Lite SS
On sale - now $59.99 - was $75

Icebreaker Men
Icebreaker Men's Tech T Lite SS
On sale - now $59.99 - was $75

Icebreaker Men
Icebreaker Men's Everyday LS Half Zip
On sale - now $60 - was $80

Icebreaker Men
Icebreaker Men's Everyday LS Half Zip
On sale - now $60 - was $80

Icebreaker Men
Icebreaker Men's Oasis SS Crewe
On sale - now $60 - was $80

Icebreaker Men
Icebreaker Men's Oasis SS Crewe
On sale - now $60 - was $80

Arcteryx Men
Arcteryx Men's Phase SL LS Crew
On sale - now $62.99 - was $75

Rab Men
Rab Men's Merino+ 120 LS Crew
On sale - now $63.71 - was $84.95

Rab Men
Rab Men's Merino+ 120 LS Crew
On sale - now $63.71 - was $84.95

Rab Men
Rab Men's Merino+ 120 LS Crew
On sale - now $63.71 - was $84.95

Rab Men
Rab Men's Merino+ 120 LS Crew
On sale - now $63.71 - was $84.95

Smartwool Men
Smartwool Men's Merino 150 Baselayer 1/4 Zip Top
On sale - now $63.71 - was $84.95

Smartwool Men
Smartwool Men's Merino 150 Baselayer 1/4 Zip Top
On sale - now $63.71 - was $84.95

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $63.99 - was $90

Helly Hansen Men
Helly Hansen Men's Lifa Active Light LS Polo
$64.95

Smartwool Men
Smartwool Men's PhD Light Zip T
On sale - now $65.99 - was $94.95

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $66.99 - was $90

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $66.99 - was $90

Icebreaker Men
Icebreaker Men's Tech Lite LS Crewe
On sale - now $66.99 - was $90

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $67.5 - was $90

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $67.5 - was $90

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $67.5 - was $90

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $67.5 - was $90

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $67.5 - was $90

Icebreaker Men
Icebreaker Men's Zeal LS Half Zip Top
On sale - now $67.5 - was $90

Icebreaker Men
Icebreaker Men's Zeal LS Half Zip Top
On sale - now $67.5 - was $90

Smartwool Men
Smartwool Men's NTS Mid 250 Color Block Crew Top
On sale - now $67.99 - was $104.95

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
$69

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
$69

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
$69

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
$69

Patagonia Men
Patagonia Men's Capilene Midweight Zip Neck
$69

Patagonia Men
Patagonia Men's Capilene Midweight Zip Neck
$69

Patagonia Men
Patagonia Men's Capilene Midweight Zip Neck
$69

Patagonia Men
Patagonia Men's Capilene Midweight Zip Neck
$69

Smartwool Men
Smartwool Men's NTS Mid 250 Crew Top
On sale - now $69.99 - was $94.95

Smartwool Men
Smartwool Men's NTS Mid 250 Color Block Hoody
On sale - now $70.99 - was $129.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $70.99 - was $109.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
On sale - now $71.21 - was $94.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
On sale - now $71.21 - was $94.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
On sale - now $71.21 - was $94.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
On sale - now $71.21 - was $94.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
On sale - now $71.21 - was $94.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $73.99 - was $99.95

Spyder Men
Spyder Men's Huron Crew
On sale - now $73.99 - was $99

Rab Men
Rab Men's Merino+ 120 LS Zip Top
On sale - now $74.96 - was $99.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $74.96 - was $99.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $74.96 - was $99.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $74.96 - was $99.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $74.96 - was $99.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $74.96 - was $99.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $74.96 - was $99.95

Icebreaker Men
Icebreaker Men's Oasis LS Half Zip
On sale - now $74.99 - was $100

Icebreaker Men
Icebreaker Men's Oasis Sky Night LS Crewe
On sale - now $74.99 - was $100

Arcteryx Men
Arcteryx Men's Phase SL LS Crew
$75

Arcteryx Men
Arcteryx Men's Phase SL LS Crew
$75

Arcteryx Men
Arcteryx Men's Phase SL LS Crew
$75

Icebreaker Men
Icebreaker Men's Oasis LS Half Zip
On sale - now $75 - was $100

Icebreaker Men
Icebreaker Men's Oasis LS Half Zip
On sale - now $75 - was $100

Mountain Hardwear Men
Mountain Hardwear Men's 32 Degree Insulated 1/2 Zip Top
On sale - now $75 - was $100

Mountain Hardwear Men
Mountain Hardwear Men's 32 Degree Insulated 1/2 Zip Top
On sale - now $75 - was $100

Mountain Hardwear Men
Mountain Hardwear Men's 32 Degree Insulated 1/2 Zip Top
On sale - now $75 - was $100

Smartwool Men
Smartwool Men's NTS Mid 250 Color Block Crew Top
On sale - now $76.99 - was $104.95

Smartwool Men
Smartwool Men's NTS Mid 250 Pattern Crew
On sale - now $78.71 - was $104.95

Smartwool Men
Smartwool Men's NTS Mid 250 Color Block Hoody
On sale - now $78.99 - was $129.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $78.99 - was $99.95

Arcteryx Men
Arcteryx Men's Phase AR LS Crew
$79

Arcteryx Men
Arcteryx Men's Phase AR LS Crew
$79

Arcteryx Men
Arcteryx Men's Phase AR LS Crew
$79

Smartwool Men
Smartwool Men's NTS Mid 250 Crew Top
On sale - now $79.99 - was $94.95

Smartwool Men
Smartwool Men's NTS Mid 250 Crew Top
On sale - now $79.99 - was $94.95

Rab Men
Rab Men's Merino+ 160 LS Zip Top
On sale - now $82.46 - was $109.95

Rab Men
Rab Men's Merino+ 160 LS Zip Top
On sale - now $82.46 - was $109.95

Rab Men
Rab Men's Merino+ 160 LS Zip Top
On sale - now $82.46 - was $109.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $82.46 - was $109.95

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $82.46 - was $109.95

Icebreaker Men
Icebreaker Men's Tech Top LS Crewe
On sale - now $82.5 - was $110

Icebreaker Men
Icebreaker Men's Zone LS Crewe
On sale - now $82.5 - was $110

Smartwool Men
Smartwool Men's NTS Mid 250 Pattern Crew
On sale - now $82.99 - was $104.95

Icebreaker Men
Icebreaker Men's Zone LS Half Zip
On sale - now $83.99 - was $120

Patagonia Men
Patagonia Men's Capilene Thermal Weight Zip-Neck Hoody
On sale - now $83.99 - was $119

Patagonia Men
Patagonia Men's Capilene Thermal Weight Zip-Neck Hoody
On sale - now $83.99 - was $119