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Men's Tops

(1,035 products)

Products (1035)

Sort: Best Match

SmartwoolMerino Sport 120 Long-Sleeve Shirt - Men's
$85.00
13 reviews with an average rating of 3.2 out of 5 stars
Sale Ends Today
Threads 4 ThoughtDesert Life Triblend Graphic T-Shirt - Men's
$23.73
Save 50%
compared to $48.00
1 reviews with an average rating of 5.0 out of 5 stars
REI OUTLET
KUHLKovert Polo Shirt - Men's
$85.00
0 reviews
Free CountryRipstop Expedition Shirt - Men's
$48.73
Save 30%
compared to $70.00
3 reviews with an average rating of 4.3 out of 5 stars
REI OUTLET
Top Rated
VuoriUluwatu 24 Water Hoodie - Men's
$38.83
Save 50%
compared to $78.00
8 reviews with an average rating of 4.6 out of 5 stars
FlorenceAirtex Expedition Long-Sleeve Shirt - Men's
$110.00
0 reviews
StioDivide Hooded Pullover - Men's
$79.00
1 reviews with an average rating of 3.0 out of 5 stars
IcebreakerMerino 125 Cool-Lite Sphere III T-Shirt - Men's
$90.00
81 reviews with an average rating of 4.0 out of 5 stars
REI Co-opSlow Roll T-Shirt
$34.95
0 reviews
Top Rated
Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men's
$120.00
Add to cart to see price
45 reviews with an average rating of 4.8 out of 5 stars
EnduraRide the Wild Graphic T-Shirt
$45.00
0 reviews
Fair HarborAnchor Rashguard - Men's
$68.00
0 reviews
SalewaLavaredo Hemp Long-Sleeve Shirt - Men's
$58.73
Save 41%
compared to $99.95
2 reviews with an average rating of 3.0 out of 5 stars
REI OUTLET
KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Men's
$119.00
12 reviews with an average rating of 4.3 out of 5 stars
New arrival
O'NeillDawn UPF Long-Seeve T-Shirt - Men's
$48.00
0 reviews
Top Rated
SalomonSHKout Core Long-Sleeve T-Shirt - Men's
$26.83 - $55.00
7 reviews with an average rating of 4.6 out of 5 stars
New arrival
NRSLightweight Hoodie - Men's
$79.95
0 reviews
MammutAenergy Light ML Half-Zip Pullover - Men's
$79.73
Save 30%
compared to $115.00
0 reviews
REI OUTLET
Top Rated
MarmotWarmCube Active Aerothermal PrimaLoft Insulated Vest - Men's
$129.73
Save 35%
compared to $200.00
18 reviews with an average rating of 4.8 out of 5 stars
REI OUTLET
MarmotAirExchange UPF 40 Shirt - Men's
$51.73
Save 26%
compared to $70.00
4 reviews with an average rating of 5.0 out of 5 stars
REI OUTLET
GOREWEAREveryday Mid Quarter-Zip - Men's
$59.73
Save 33%
compared to $90.00
0 reviews
REI OUTLET
The North FaceTekno Logo Hoodie - Men's
$64.83
Save 50%
compared to $130.00
4 reviews with an average rating of 5.0 out of 5 stars
VuoriAspen Shirt Jacket - Men's
$158.00
3 reviews with an average rating of 2.3 out of 5 stars
SmartwoolActive Ultralite T-Shirt - Men's
$70.00
24 reviews with an average rating of 3.6 out of 5 stars
NikeACG Solar Chase T-Shirt - Men's
$70.00
0 reviews
Top Rated
SmartwoolSmartloft Insulated Vest - Men's
$113.83 - $151.93
Save 20% - 40%
compared to $190.00
20 reviews with an average rating of 4.8 out of 5 stars
Sale Ends Today
ColumbiaSkien Valley Long-Sleeve Woven Shirt - Men's
$67.49 - $82.49
Save 25% - 38%
compared to $110.00
27 reviews with an average rating of 4.5 out of 5 stars
PatagoniaLong-Sleeve Sunrise Stream Shirt - Men's
$99.00
0 reviews
ZoicBusted Ride T-Shirt - Men's
$16.93
Save 32%
compared to $25.00
0 reviews
SmartwoolAlpine Crew Shirt - Men's
$130.73
Save 25%
compared to $175.00
0 reviews
REI OUTLET
PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
$99.00
11 reviews with an average rating of 4.0 out of 5 stars
FjallravenOvik Lite Padded Shirt - Men's
$149.93
Save 25%
compared to $200.00
5 reviews with an average rating of 4.0 out of 5 stars
Outdoor ResearchEssential Fleece Crew Sweatshirt - Men's
$69.73
Save 29%
compared to $99.00
3 reviews with an average rating of 5.0 out of 5 stars
REI OUTLET
FjallravenHoja Ivag T-Shirt - Men's
$50.00
0 reviews
RoarkAlta Elite Trail Hoodie - Men's
$89.00
0 reviews
Top Rated
Mountain HardwearTrail Sender Long-Sleeve Shirt - Men's
$66.73
Save 25%
compared to $90.00
21 reviews with an average rating of 4.6 out of 5 stars
REI OUTLET
Top Rated
rabbitEZ T-Shirt - Men's
$50.00
7 reviews with an average rating of 4.7 out of 5 stars
Royal RobbinsRedwood Plaid Shirt - Men's
$53.73
Save 25%
compared to $72.00
0 reviews
REI OUTLET
Sale Ends Today
GlyderAlpine Pullover - Men's
$34.73
Save 54%
compared to $76.00
0 reviews
REI OUTLET
PatagoniaLight Gust Insulated Vest - Men's
$199.00
0 reviews
Arc'teryxDelta Pullover Hoody - Men's
$145.73
Save 19%
compared to $180.00
14 reviews with an average rating of 4.3 out of 5 stars
REI OUTLET
Top Rated
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men's
$130.00
35 reviews with an average rating of 4.7 out of 5 stars
ColumbiaAlpine Chill Pro Polo Shirt - Men's
$34.73
Save 30%
compared to $50.00
4 reviews with an average rating of 4.8 out of 5 stars
REI OUTLET
Top Rated
MarmotAerobora Shirt - Men's
$44.73
Save 25%
compared to $60.00
120 reviews with an average rating of 4.7 out of 5 stars
REI OUTLET
New arrival
SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men's
$134.73
Save 25%
compared to $180.00
0 reviews
REI OUTLET
OnTrail-T Shirt - Men's
$41.93
Save 30%
compared to $60.00
0 reviews
Top Rated
Black DiamondCoefficient Quarter-Zip Hoody - Men's
$99.73
Save 37%
compared to $160.00
27 reviews with an average rating of 4.9 out of 5 stars
REI OUTLET
BrooksDistance 3.0 T-Shirt - Men's
$26.73
Save 29%
compared to $38.00
1 reviews with an average rating of 4.0 out of 5 stars
REI OUTLET
SmartwoolMerino T-Shirt - Men's
$59.73
Save 25%
compared to $80.00
127 reviews with an average rating of 4.0 out of 5 stars
REI OUTLET
Top Rated
IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$119.73
Save 25%
compared to $160.00
8 reviews with an average rating of 4.5 out of 5 stars
REI OUTLET
Top Rated
KUHLRyzer Quarter-Zip Sweater - Men's
$73.93
Save 25%
compared to $99.00
91 reviews with an average rating of 4.6 out of 5 stars
rabbitUPF T-Shirt - Men's
$55.00
3 reviews with an average rating of 4.0 out of 5 stars
Top Rated
IcebreakerMerino 125 Cool-Lite Speed T-Shirt - Men's
$100.00
8 reviews with an average rating of 4.6 out of 5 stars
Sale Ends Today
Top Rated
ColumbiaTech Trail Utility Hoodie - Men's
$37.49 - $44.99
Save 25% - 37%
compared to $60.00
31 reviews with an average rating of 4.6 out of 5 stars
SmartwoolPerfect V-Neck T-Shirt - Men's
$44.73
Save 25%
compared to $60.00
0 reviews
REI OUTLET
OnCore Long-T Shirt - Men's
$70.00
0 reviews
RoarkBless Up Polo Shirt - Men's
$61.93
Save 27%
compared to $85.00
0 reviews
SmartwoolActive Quarter-Zip Top - Men's
$120.00
5 reviews with an average rating of 3.8 out of 5 stars
Top Rated
DUERPerformance Flannel Shirt - Men's
$88.93
Save 25%
compared to $119.00
14 reviews with an average rating of 4.6 out of 5 stars
Top Rated
The North FaceDune Sky Crew Shirt - Men's
$32.73
Save 27%
compared to $45.00
90 reviews with an average rating of 4.8 out of 5 stars
REI OUTLET
Sale Ends Today
Threads 4 ThoughtAshby Pique Striped Polo Shirt - Men's
$26.73
Save 60%
compared to $68.00
3 reviews with an average rating of 4.0 out of 5 stars
REI OUTLET
Arc'teryxRho SV Zip-Neck Base Layer Top - Men's
$140.00
14 reviews with an average rating of 3.6 out of 5 stars
Top Rated
Free CountryForce Grid Fleece Base Layer Top - Men's
$29.73
Save 33%
compared to $45.00
17 reviews with an average rating of 4.9 out of 5 stars
REI OUTLET
Top Rated
Free FlySlub Hoodie II - Men's
$88.00
18 reviews with an average rating of 4.7 out of 5 stars
IcebreakerMerino 125 Cool-Lite Sphere III Long-Sleeve T-Shirt - Men's
$100.00
43 reviews with an average rating of 4.4 out of 5 stars
VISSLAWarm Seas Long-Sleeve Hooded Rashguard - Men's
$70.00
0 reviews
OstroyPretty Okay At Bikes T-Shirt
$40.00
4 reviews with an average rating of 3.5 out of 5 stars
New arrival
IcebreakerMerino 150 Tech Lite The Peaks T-Shirt - Men's
$95.00
0 reviews
Top Rated
Outdoor ResearchRavenna Flannel Shirt - Men's
$54.73
Save 38%
compared to $89.00
14 reviews with an average rating of 4.7 out of 5 stars
REI OUTLET
Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's
$71.83
Save 50%
compared to $145.00
16 reviews with an average rating of 3.9 out of 5 stars
Top Rated
Free CountrySueded Space-Dye Long-Sleeve Crew Shirt - Men's
$29.73
Save 33%
compared to $45.00
75 reviews with an average rating of 4.8 out of 5 stars
REI OUTLET
Black DiamondScenic Route Shirt - Men's
$99.00
0 reviews
rabbitEZ Tee LS Shirt - Men's
$58.00
0 reviews
Free FlySalt and Sun Pocket T-Shirt - Men's
$28.73
Save 24%
compared to $38.00
10 reviews with an average rating of 4.2 out of 5 stars
REI OUTLET
Arc'teryxCerium Down Vest - Men's
$300.00
40 reviews with an average rating of 4.3 out of 5 stars
Top Rated
Topo DesignsPlaid Mountain Shirt - Men's
$48.83 - $73.93
Save 25% - 50%
compared to $99.00
7 reviews with an average rating of 4.7 out of 5 stars
SmartwoolHeavy Henley Sweater - Men's
$126.73
Save 25%
compared to $170.00
1 reviews with an average rating of 1.0 out of 5 stars
REI OUTLET
VuoriWaffle Henley Shirt - Men's
$98.00
3 reviews with an average rating of 4.3 out of 5 stars
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's
$135.00
52 reviews with an average rating of 4.5 out of 5 stars
The North FaceSunriser Shirt - Men's
$36.73
Save 26%
compared to $50.00
13 reviews with an average rating of 3.9 out of 5 stars
REI OUTLET
Top Rated
Black DiamondLightwire Long-Sleeve Tech T-Shirt - Men's
$59.73
Save 25%
compared to $80.00
48 reviews with an average rating of 4.8 out of 5 stars
REI OUTLET
VISSLAWarm Seas Long-Sleeve Rashguard - Men's
$60.00
0 reviews
The North FaceTri-Blend Mountain Days T-Shirt - Men's
$40.00
0 reviews
Top Rated
MarmotStinson Insulated Vest - Men's
$74.73
Save 25%
compared to $100.00
10 reviews with an average rating of 4.9 out of 5 stars
REI OUTLET
MarmotWanderer High-Pile Fleece Vest - Men's
$70.73
Save 35%
compared to $110.00
0 reviews
REI OUTLET
Threads 4 ThoughtTriblend Raglan Sweatshirt - Men's
$42.73
Save 33%
compared to $64.00
4 reviews with an average rating of 5.0 out of 5 stars
REI OUTLET
SmartwoolActive Long-Sleeve Tech T-Shirt - Men's
$68.73
Save 27%
compared to $95.00
3 reviews with an average rating of 3.0 out of 5 stars
REI OUTLET
JanjiAuras Ultrafleece Hoodie - Men's
$59.83
Save 50%
compared to $120.00
1 reviews with an average rating of 5.0 out of 5 stars
RoarkMathis Active Pocket T-Shirt - Men's
$28.83 - $59.00
3 reviews with an average rating of 3.7 out of 5 stars
New arrival
RoarkSafe Camp T-Shirt - Men's
$35.00
0 reviews

541–630 of 1,035 products

Sort: Best Match

Related Expert Advice articles

What material is best?

Wool is moisture-wicking and odor-resistant, while synthetic fabrics are more durable and less expensive.

Match the temp to the trek

Lightweight layers are best for moderate to cool temperatures. Midweight layers are best for cold temperatures. Heavyweight layers are best for below-freezing temperatures.

Find your fit

To be able to wick sweat efficiently, your next-to-skin layer needs to actually be next to your skin. A comfortably snug fit everywhere is your goal.

Read full article: How to Choose Base Layers

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