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

Patagonia Men
Patagonia Men's Capilene Daily T-Shirt
On sale - now $23.2 - was $29

Regatta Men
Regatta Men's Beckley Top
On sale - now $23.99 - was $29.95

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

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

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Resolution IR Crew
On sale - now $29.98 - was $59.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Resolution IR Crew
On sale - now $29.98 - was $59.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Resolution IR Crew
On sale - now $29.98 - was $59.95

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

Patagonia Men
Patagonia Men's Capilene Lightweight T-Shirt
On sale - now $31.2 - was $39

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

Men
Men's H2 Core Silkweight SS Shirt
$34.95

Men
Men's H2 Core Silkweight SS Shirt
$34.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Resolution IR 1/4 Zip Up
On sale - now $34.98 - was $69.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Resolution IR 1/4 Zip Up
On sale - now $34.98 - was $69.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Resolution IR 1/4 Zip Up
On sale - now $34.98 - was $69.95

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
$40

Marmot Men
Marmot Men's Lightweight Kestrel LS Crew
$39.95

Marmot Men
Marmot Men's Lightweight Kestrel LS Crew
$39.95

Marmot Men
Marmot Men's Lightweight Kestrel LS Crew
$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

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid Long Sleeve
On sale - now $39.98 - was $79.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid Long Sleeve
On sale - now $39.98 - was $79.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid Long Sleeve
On sale - now $39.98 - was $79.95

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

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

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

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Midweight Freedry Merino Hybrid 1/4 Zip Up
On sale - now $44.98 - 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 $44.98 - 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 $44.98 - was $89.95

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

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

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Heavyweight Freedry Merino Baselayer 1/4 Zip Up
On sale - now $49.48 - was $98.95

Eddie Bauer First Ascent Men
Eddie Bauer First Ascent Men's Heavyweight Freedry Merino Baselayer 1/4 Zip Up
On sale - now $49.48 - was $98.95

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

Marmot Men
Marmot Men's Midweight Harrier LS Crew
$49.95

Marmot Men
Marmot Men's Midweight Harrier LS Crew
$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 Tech Lite LS Crewe
On sale - now $49.99 - was $90

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

Carhartt Men
Carhartt Men's Yukon Quilted Base Layer Top
On sale - now $51.99 - was $69.99

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

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

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

Marmot Men
Marmot Men's Midweight Harrier 1/2 Zip Top
$59.95

Marmot Men
Marmot Men's Midweight Harrier 1/2 Zip Top
$59.95

Marmot Men
Marmot Men's Midweight Harrier 1/2 Zip 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

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

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

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

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

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

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

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

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

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

Arcteryx Men
Arcteryx Men's Phase SL SS Crew
$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

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

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

Icebreaker Men
Icebreaker Men's Everyday LS Crewe
$70

Marmot Men
Marmot Men's Heavyweight Morph 1/2 Zip Top
$74.95

Marmot Men
Marmot Men's Midweight Harrier Hoody
$74.95

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

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 AR LS Crew
$79

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

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

Patagonia Men
Patagonia Men's Capilene Thermal Weight Zip-Neck
On sale - now $79.2 - was $99

Patagonia Men
Patagonia Men's Capilene Thermal Weight Zip-Neck
On sale - now $79.2 - was $99

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

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

Smartwool Men
Smartwool Men's NTS Mid 250 Zip T
On sale - now $81.99 - was $109.95

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

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

Obermeyer Men
Obermeyer Men's Flex 1/4 Zip Baselayer Top
$88.95

Obermeyer Men
Obermeyer Men's Flex 1/4 Zip Baselayer Top
$88.95

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 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

Gore Wear Men
Gore Wear Men's M Gore Windstopper Base layer Thermo LS Shirt
$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 150 Zone LS Crewe Top
$89.95

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

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

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

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

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

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

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

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

Scott USA Men
Scott USA Men's Defined Mid Pullover
$89.95

Scott USA Men
Scott USA Men's Defined Mid Pullover
$89.95

Icebreaker Men
Icebreaker Men's Oasis LS Crewe
$90

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
$94.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
$94.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
$94.95

Smartwool Men
Smartwool Men's Merino 250 Baselayer Crew
$94.95

Outdoor Research Men
Outdoor Research Men's Alpine Onset Crew
$98.95

Outdoor Research Men
Outdoor Research Men's Alpine Onset Crew
$98.95

Outdoor Research Men
Outdoor Research Men's Alpine Onset Crew
$98.95

La Sportiva Men
La Sportiva Men's Artic LS Top
$99

La Sportiva Men
La Sportiva Men's Artic LS Top
$99

Fjallraven Men
Fjallraven Men's High Coast First Layer LS Top
$99.95

Icebreaker Men
Icebreaker Men's 150 Zone LS Half Zip Top
$99.95

Icebreaker Men
Icebreaker Men's 150 Zone LS Half Zip Top
$99.95

Icebreaker Men
Icebreaker Men's 150 Zone LS Half Zip Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan LS Crewe Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan LS Crewe Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan LS Crewe Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan LS Crewe Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan LS Crewe Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan LS Crewe Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan Single Line Ski LS Crewe
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan Single Line Ski LS Crewe
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis Deluxe Raglan Single Line Ski LS Crewe
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis LS Half Zip Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis LS Half Zip Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis LS Half Zip Top
$99.95

Icebreaker Men
Icebreaker Men's 200 Oasis LS Half Zip Top
$99.95