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.


Carhartt Men
Carhartt Men's Base Force Extremes Lightweight SS T-Shirt
On sale - now $19.99 - was $24.99

Carhartt Men
Carhartt Men's Base Force Extremes Lightweight SS T-Shirt
On sale - now $19.99 - was $24.99

Terramar Men
Terramar Men's Ecolator CS 3.0 Long Sleeve Crew Top
On sale - now $19.99 - was $50

Carhartt Men
Carhartt Men's Base Force Extremes Lightweight Crewneck
On sale - now $23.99 - was $29.99

Under Armour Men
Under Armour Men's UA ColdGear Armour Mock Neck Top
On sale - now $26.99 - was $49.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $28.99 - was $39.95

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

Carhartt Men
Carhartt Men's Base Force Cotton Super Cold Weather Crewneck Top
$29.95

Carhartt Men
Carhartt Men's Base Force Cotton Super Cold Weather Crewneck Top
$29.95

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

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $29.99 - was $39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
On sale - now $29.99 - was $39.95

ExOfficio Men
ExOfficio Men's Give-and-Go Performance Base Layer Crew Neck Top
On sale - now $31.99 - was $59.95

ExOfficio Men
ExOfficio Men's Give-and-Go Performance Base Layer Crew Neck Top
On sale - now $31.99 - was $59.95

Under Armour Men
Under Armour Men's UA Base 2.0 1/4 Zip Top
On sale - now $32.99 - was $59.95

Men
Men's H2 Core Silkweight SS Shirt
$34.95

Under Armour Men
Under Armour Men's UA ColdGear Infrared Devo 1/4 Zip
On sale - now $36.99 - was $79.95

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

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Crewneck
$39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
$39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
$39.95

ExOfficio Men
ExOfficio Men's Give-N-Go Tee
$39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
$39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
$39.95

ExOfficio Men
ExOfficio Men's Give-N-Go V Tee
$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

Sherpa Men
Sherpa Men's Rinchen SS Tee
$39.95

Sherpa Men
Sherpa Men's Rinchen SS Tee
$39.95

Marmot Men
Marmot Men's Lightweight Kestrel LS Crew
$40

Marmot Men
Marmot Men's Lightweight Kestrel LS Crew
$40

Marmot Men
Marmot Men's Lightweight Kestrel LS Crew
$40

Smartwool Men
Smartwool Men's PhD Light LS Top
On sale - now $40.99 - was $84.95

Carhartt Men
Carhartt Men's Base Force Extremes Super Cold Weather Quarter Zip Top
On sale - now $43.99 - was $54.99

Columbia Men
Columbia Men's Midweight Stretch Long Sleeve Top
On sale - now $43.99 - was $55

Columbia Men
Columbia Men's Midweight Stretch Long Sleeve Top
On sale - now $43.99 - was $55

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Camo Crewneck
$44.95

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Quarter Zip Top
$44.95

Craghoppers Men
Craghoppers Men's First Layer LS T-Shirt
$44.95

The North Face Men
The North Face Men's Light L/S Crew Neck
$44.95

The North Face Men
The North Face Men's Light L/S Crew Neck
$44.95

Smartwool Men
Smartwool Men's PhD Light LS Top
On sale - now $44.99 - was $84.95

Arcteryx Men
Arcteryx Men's Phase SL LS Crew
On sale - now $47.99 - was $75

Columbia Men
Columbia Men's Midweight Stretch Long Sleeve Half Zip
On sale - now $47.99 - was $60

Icebreaker Men
Icebreaker Men's Everyday LS Crewe
On sale - now $48.99 - was $70

Patagonia Men
Patagonia Men's Capilene Lightweight Crew
$49

Patagonia Men
Patagonia Men's Capilene Lightweight Crew
$49

Carhartt Men
Carhartt Men's Base Force Extremes Cold Weather Quarter Zip Top
$49.95

Carhartt Men
Carhartt Men's Base Force Extremes Super Cold Weather Crewneck
$49.95

Craft Men
Craft Men's FuseKnit Comfort Roung Neck LS Top
$49.95

Craft Men
Craft Men's FuseKnit Comfort Roung Neck LS Top
$49.95

Craft Men
Craft Men's FuseKnit Comfort Roung Neck LS Top
$49.95

Sherpa Men
Sherpa Men's Rinchen LS Tee
$49.95

Sherpa Men
Sherpa Men's Rinchen LS Tee
$49.95

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

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

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

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
On sale - now $49.99 - was $90

Icebreaker Men
Icebreaker Men's Tech Lite LS Crewe
On sale - now $49.99 - was $90

Marmot Men
Marmot Men's Midweight Harrier LS Crew
$50

Marmot Men
Marmot Men's Midweight Harrier LS Crew
$50

Marmot Men
Marmot Men's Midweight Harrier LS Crew
$50

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
On sale - now $50.99 - was $69

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
On sale - now $50.99 - was $69

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
On sale - now $51.99 - was $69

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
On sale - now $51.99 - was $69

Columbia Men
Columbia Men's Heavyweight II Long Sleeve Half Zip
On sale - now $51.99 - was $70

Brooks Men
Brooks Men's Dash Base LS Top
$54.95

Columbia Men
Columbia Men's Midweight Stretch Long Sleeve Top
$54.95

Columbia Men
Columbia Men's Midweight Stretch Long Sleeve Top
$54.95

NRS Men
NRS Men's H2Core Silkweight Hoodie
$54.95

NRS Men
NRS Men's H2Core Silkweight Hoodie
$54.95

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

Icebreaker Men
Icebreaker Men's Oasis LS Half Zip
On sale - now $54.99 - was $100

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid Long Sleeve
On sale - now $55.97 - was $79.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid Long Sleeve
On sale - now $55.97 - was $79.95

Smartwool Men
Smartwool Men's PhD Light Zip T
On sale - now $55.99 - was $94.95

Smartwool Men
Smartwool Men's NTS Mid 250 Color Block Hoody
On sale - now $57.99 - was $129.95

Patagonia Men
Patagonia Men's Capilene Midweight Crew
$59

Patagonia Men
Patagonia Men's Capilene Midweight Crew
$59

Columbia Men
Columbia Men's Midweight Stretch Long Sleeve Half Zip
$59.95

Columbia Men
Columbia Men's Midweight Stretch Long Sleeve Half Zip
$59.95

Dare 2B Men
Dare 2B Men's Interfuse Core Stretch
$59.95

Dare 2B Men
Dare 2B Men's Interfuse Core Stretch
$59.95

Icebreaker Men
Icebreaker Men's 175 Everyday SS Crewe Top
$59.95

Icebreaker Men
Icebreaker Men's 175 Everyday SS Crewe Top
$59.95

Sherpa Men
Sherpa Men's Rinchen Zip Tee
$59.95

Sherpa Men
Sherpa Men's Rinchen Zip Tee
$59.95

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

Arcteryx Men
Arcteryx Men's Phase SL Zip LS Neck
On sale - now $59.99 - was $85

Icebreaker Men
Icebreaker Men's Everyday LS Half Zip
On sale - now $59.99 - was $80

Icebreaker Men
Icebreaker Men's Everyday LS Half Zip
On sale - now $59.99 - was $80

Icebreaker Men
Icebreaker Men's Oasis SS Crewe
On sale - now $59.99 - was $80

Marmot Men
Marmot Men's Midweight Harrier 1/2 Zip Top
$60

Marmot Men
Marmot Men's Midweight Harrier 1/2 Zip Top
$60

Marmot Men
Marmot Men's Midweight Harrier 1/2 Zip Top
$60

Icebreaker Men
Icebreaker Men's Tech Top LS Crewe
On sale - now $60.99 - was $110

Icebreaker Men
Icebreaker Men's Tech Top LS Crewe
On sale - now $60.99 - was $110

Icebreaker Men
Icebreaker Men's Tech Top LS Crewe
On sale - now $60.99 - was $110

Icebreaker Men
Icebreaker Men's Zone LS Crewe
On sale - now $60.99 - was $110

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid 1/4 Zip Up
On sale - now $62.97 - was $89.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid 1/4 Zip Up
On sale - now $62.97 - was $89.95

Spyder Men
Spyder Men's Huron Crew
On sale - now $63.99 - was $99

Obermeyer Transport Tech Baselayer Top
Obermeyer Transport Tech Baselayer Top
$64.5

Hot Chillys Men
Hot Chillys Men's Micro Elite Chamois 8K Crewneck
$64.95

Hot Chillys Men
Hot Chillys Men's Micro Elite Chamois 8K Crewneck
$64.95

Icebreaker Men
Icebreaker Men's Anatomica Tank
$64.95

Icebreaker Men
Icebreaker Men's Anatomica Tank
$64.95

Mountain Hardwear Men
Mountain Hardwear Men's 32 Degree Insulated 1/2 Zip Top
On sale - now $64.99 - was $100

Mountain Hardwear Men
Mountain Hardwear Men's 32 Degree Insulated 1/2 Zip Top
On sale - now $64.99 - was $100

Icebreaker Men
Icebreaker Men's Tech Top LS Half Zip Top
On sale - now $65.99 - was $120

Smartwool Men
Smartwool Men's NTS Mid 250 Color Block Crew Top
On sale - now $65.99 - was $104.95

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 Oasis LS Crewe
On sale - now $66.99 - was $90

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

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

Columbia Men
Columbia Men's Heavyweight II Long Sleeve Half Zip
$69.95

Icebreaker Men
Icebreaker Men's 175 Everyday LS Crewe Top
$69.95

Icebreaker Men
Icebreaker Men's 175 Everyday LS Crewe Top
$69.95

Icebreaker Men
Icebreaker Men's 175 Everyday LS Crewe Top
$69.95

Icebreaker Men
Icebreaker Men's Anatomica SS V Neck Top
$69.95

Icebreaker Men
Icebreaker Men's Anatomica SS V Neck Top
$69.95

Icebreaker Men
Icebreaker Men's Anatomica SS V Neck Top
$69.95

Rab Men
Rab Men's Merino+ 120 SS Crew
$69.95

Rab Men
Rab Men's Merino+ 120 SS Crew
$69.95

Rab Men
Rab Men's Merino+ 120 SS Crew
$69.95

Rab Men
Rab Men's Merino+ 120 SS Crew
$69.95

Scott USA Men
Scott USA Men's Defined Light Pullover
$69.95

Scott USA Men
Scott USA Men's Defined Light Pullover
$69.95

Carhartt Men
Carhartt Men's Yukon Quilted Base Layer Top
$69.99

Icebreaker Men
Icebreaker Men's Everyday LS Crewe
$70

Icebreaker Men
Icebreaker Men's Winter Zone LS Half Zip
On sale - now $71.99 - was $130

Smartwool Men
Smartwool Men's NTS Mid 250 Pattern Crew
On sale - now $71.99 - was $104.95

Under Armour Men
Under Armour Men's Base 3.0 Crew Top
$74.95

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

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

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $74.99 - was $99.95

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

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

Marmot Men
Marmot Men's Heavyweight Morph 1/2 Zip Top
$75

Marmot Men
Marmot Men's Heavyweight Morph 1/2 Zip Top
$75

Marmot Men
Marmot Men's Midweight Harrier Hoody
$75

Smartwool Men
Smartwool Men's NTS Mid 250 Pattern Crew
On sale - now $77.99 - was $104.95

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

Burton Men
Burton Men's Expedition 1/4 Zip Top
$79.95

Burton Men
Burton Men's Expedition 1/4 Zip Top
$79.95

Burton Men
Burton Men's Expedition 1/4 Zip Top
$79.95

Hot Chillys Men
Hot Chillys Men's Micro Elite Chamois 8K Solid Zip-T
$79.95

Icebreaker Men
Icebreaker Men's 150 Zone SS Crewe Top
$79.95

Icebreaker Men
Icebreaker Men's 150 Zone SS Crewe Top
$79.95

Icebreaker Men
Icebreaker Men's 175 Everyday LS Half Zip Top
$79.95

Icebreaker Men
Icebreaker Men's 175 Everyday LS Half Zip Top
$79.95

Icebreaker Men
Icebreaker Men's 175 Everyday LS Half Zip Top
$79.95

Icebreaker Men
Icebreaker Men's 200 Oasis SS Crewe Top
$79.95

Icebreaker Men
Icebreaker Men's 200 Oasis SS Crewe Top
$79.95

Icebreaker Men
Icebreaker Men's 200 Oasis SS Crewe Top
$79.95

Pearl Izumi Men
Pearl Izumi Men's Transfer Wool SS Cycling Baselayer
$79.95

Fjallraven Men
Fjallraven Men's High Coast First Layer LS Top
On sale - now $79.99 - was $99.95

Icebreaker Men
Icebreaker Men's Oasis SS Crewe
$80

Icebreaker Men
Icebreaker Men's Oasis SS Crewe
$80

Mons Royale Men
Mons Royale Men's Coreshot Raglan LS Wool Thermal Top
On sale - now $80.99 - was $110

Mons Royale Men
Mons Royale Men's Coreshot Raglan LS Wool Thermal Top
On sale - now $80.99 - was $110

Rab Men
Rab Men's Merino+ 160 LS Zip Top
On sale - now $81.99 - was $109.95

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

66North Men
66North Men's Adalvik Hooded Top
$84.95

Duckworth Men
Duckworth Men's Vapor Wool Henley Shirt
$84.95

Duckworth Men
Duckworth Men's Vapor Wool Henley Shirt
$84.95

Rab Men
Rab Men's Merino+ 120 LS Crew
$84.95

Rab Men
Rab Men's Merino+ 120 LS Crew
$84.95

Rab Men
Rab Men's Merino+ 120 LS Crew
$84.95

Rab Men
Rab Men's Merino+ 120 LS Crew
$84.95

Smartwool Men
Smartwool Men's Merino 150 Baselayer 1/4 Zip Top
$84.95

Smartwool Men
Smartwool Men's Merino 150 Baselayer 1/4 Zip Top
$84.95

Under Armour Men
Under Armour Men's Base 4.0 Crew Top
$84.95

Arcteryx Men
Arcteryx Men's Phase SL Zip LS Neck
$85

Arcteryx Men
Arcteryx Men's Phase SL Zip LS Neck
$85

The North Face Men
The North Face Men's Baselayer Hoodie
$88.95

The North Face Men
The North Face Men's Baselayer Hoodie
$88.95

Arcteryx Men
Arcteryx Men's Satoro AR LS Crew
On sale - now $88.99 - was $119

Arcteryx Men
Arcteryx Men's Phase AR Zip LS Neck
$89

Arcteryx Men
Arcteryx Men's Phase AR Zip LS Neck
$89

Arcteryx Men
Arcteryx Men's Phase AR Zip LS Neck
$89

Patagonia Men
Patagonia Men's Capilene Thermal Weight Crew
$89

Patagonia Men
Patagonia Men's Capilene Thermal Weight Crew
$89

Icebreaker Men
Icebreaker Men's 150 Zone LS Crewe Top
$89.95

Icebreaker Men
Icebreaker Men's 150 Zone LS Crewe Top
$89.95

Icebreaker Men
Icebreaker Men's 150 Zone LS Crewe Top
$89.95

Icebreaker Men
Icebreaker Men's 200 Oasis LS Crewe Top
$89.95