loaded 191 results

Long Sleeve Base Layers

(191 products)

Products (191)

Sort: Best Match

Top Rated
Black DiamondSolution 150 Merino Base Layer Crew Top - Women's
$99.73
Save 26%
compared to $135.00
23 reviews with an average rating of 4.9 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's
$84.73
Save 50%
compared to $170.00
2 reviews with an average rating of 3.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Kari TraaRose Light Base Layer Top - Women's
$81.73
Save 25%
compared to $110.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
IcebreakerMerino 260 ZoneKnit Long-Sleeve Crew Base Layer Top- Men's
$175.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Helly HansenLIFA Merino Midweight Graphic Base Layer Crew Top - Women's
$69.93 - $110.00
4 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's
$114.73
Save 30%
compared to $165.00
2 reviews with an average rating of 5.0 out of 5 stars
Size Type:
Regular
REI OUTLET
Top Rated
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women's
$56.83 - $130.00
41 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
ObermeyerComfy Cozy Cargo Base-Layer Set - Kids'
$49.73
Save 27%
compared to $69.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
SpraywayEffra Hoody Base Layer Top - Women's
$49.73
Save 28%
compared to $69.95
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
REI OUTLET
SmartwoolClassic Thermal Merino Base Layer Crew One-Piece - Women's
$250.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Hot ChillysPeach Skins T-Neck Base Layer Top - Kids'
$32.73
Save 34%
compared to $50.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Helly HansenLifa Merino Midweight Crew Base Layer Top - Men's
$105.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$48.73
Save 18% - 25%
compared to $60.00 - $65.00
6 reviews with an average rating of 3.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
New arrival
SmartwoolClassic Thermal Merino Half-Zip Base Layer Hoodie - Women's
$108.73
Save 25%
compared to $145.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Kari TraaSmekker Long-Sleeve Base Layer Top - Women's
$89.73
Save 25%
compared to $120.00
4 reviews with an average rating of 3.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Kari TraaFryd Long-Sleeve Base Layer Top - Women's
$49.73
Save 23%
compared to $65.00
29 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Plus, Regular
REI OUTLET
Top Rated
KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Women's
$58.83
Save 50%
compared to $119.00
6 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
$44.93
Save 30%
compared to $65.00
80 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Kari TraaLucie Half-Zip Base Layer Top - Women's
$66.73
Save 25%
compared to $90.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
RHONEApres Houndstooth Quarter-Zip Base Layer Top - Women's
$102.93
Save 30%
compared to $148.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Helly HansenHH Durawool Crew Long-Sleeve Shirt - Women's
$64.73
Save 28%
compared to $90.00
2 reviews with an average rating of 2.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
ArtilectBoulder 125 Crew Long-Sleeve Base Layer Top - Women's
$65.73
Save 45%
compared to $120.00
1 reviews with an average rating of 1.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Hootie HooTorrent Layering Fleece Base Layer Set - Toddler's
$51.93
Save 30%
compared to $75.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's
$99.93
Save 35%
compared to $155.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Top Rated
Helly HansenLifa Merino Midweight Graphic Base Layer Top - Women's
$79.73 - $82.73
Save 24% - 27%
compared to $110.00
5 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Helly HansenHH LIFA Crew Base Layer Top - Women's
$50.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
Top Rated
Icebreaker200 Oasis Crewe Long-Sleeve Base Layer Top - Kids'
$41.93
Save 30%
compared to $60.00
9 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Deux par DeuxThermal Underwear Base Layer Set - Toddlers'
$49.93
Save 30%
compared to $72.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Women's
$93.73
Save 25%
compared to $125.00
10 reviews with an average rating of 4.1 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women's
$89.73
Save 33%
compared to $135.00
37 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Plus
REI OUTLET

151–180 of 191 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

Related searches