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Moisture Wicking Base Layer Tops

(142 products)

Products (142)

Sort: Best Match

Sale Ends May 25
Top Rated
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's
$78.69
Save 25%
compared to $105.00
11 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men's
$89.73
Save 25%
compared to $120.00
61 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$59.83 - $112.49
Save 25% - 60%
compared to $150.00
209 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Sale Ends May 25
Kari TraaEmbla Wool Base Layer T-Shirt - Women's
$55.99
Save 30%
compared to $80.00
0 reviews
Underwear Weight:
Ultralightweight
Size Type:
Regular
Sale Ends May 25
Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
$97.49
Save 25%
compared to $130.00
62 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Sale Ends May 25
Top Rated
REI Co-opLightweight Half-Zip Base Layer Top - Women's
$37.39
Save 25%
compared to $49.95
16 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
Sale Ends May 25
Top Rated
REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
$74.89
Save 25%
compared to $99.95
50 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Big
SmartwoolClassic Thermal Merino Base Layer Hoodie - Men's
$108.73
Save 25%
compared to $145.00
3 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Sale Ends May 25
SmartwoolIntraknit Thermal Merino Colorblock Crew Base Layer Top - Men's
$97.49
Save 25%
compared to $130.00
12 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Top Rated
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Women's
$89.73
Save 25%
compared to $120.00
72 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Sale Ends May 25
REI Co-opMerino 185 Base Layer Top - Men's
$52.39
Save 25%
compared to $69.95
60 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Sale Ends May 25
Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall Sizes
$67.39
Save 25%
compared to $89.95
17 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Tall, Big
Top Rated
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Women's
$69.73
Save 26%
compared to $95.00
6 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
$84.73
Save 26%
compared to $115.00
319 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Sale Ends May 21
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women's
$77.73
Save 42%
compared to $135.00
37 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Plus
REI OUTLET
Sale Ends May 25
Top Rated
Kari TraaEdith Half-Zip Base Layer Top - Women's
$76.73
Save 30%
compared to $110.00
12 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Women's
$70.93
Save 20%
compared to $89.00
52 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Plus
SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men's
$96.73
Save 25%
compared to $130.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Sale Ends May 25
Kari TraaEmbla Wool Long-Sleeve Base Layer Top - Women's
$62.99
Save 30%
compared to $90.00
0 reviews
Underwear Weight:
Ultralightweight
Size Type:
Regular
Sale Ends May 25
Kari TraaRose Half-Zip Base Layer Top - Women's
$97.99
Save 30%
compared to $140.00
31 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Sale Ends May 25
IcebreakerSiren Sweetheart Long Underwear Top - Women's
$63.69
Save 25%
compared to $85.00
30 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Top Rated
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women's
$56.83 - $97.49
Save 25% - 50%
compared to $115.00 - $130.00
42 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
SmartwoolIntraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's
$49.83 - $104.99
Save 25% - 64%
compared to $140.00
8 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Sale Ends May 25
Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
$59.89
Save 25%
compared to $79.95
11 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Tall
Sale Ends May 25
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Base Layer Top - Women's
$89.99
Save 25%
compared to $120.00
1 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Sale Ends May 21
Top Rated
Black DiamondSolution 150 Merino Base Layer Crew Top - Women's
$87.73
Save 35%
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
Sale Ends May 25
Top Rated
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men's
$97.49
Save 25%
compared to $130.00
36 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Sale Ends May 21
Kari TraaSmekker Half-Zip Base Layer Top - Women's
$78.73
Save 39%
compared to $130.00
21 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Sale Ends May 25
SmartwoolIntraknit AS Merino Base Layer Crew Top - Women's
$93.69
Save 25%
compared to $125.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
Arc'teryxIonia Merino Wool Base Layer Top - Men's
$90.00
49 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big

31–60 of 142 products

Sort: Best Match

Related Expert Advice articles

Which material is best?

Wool: highly moisture-wicking and odor-resistant
Synthetic: durable and less expensive
Silk: soft and lightweight for casual activities

Match the temp to the trek

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

Find your fit

Must be close to skin to efficiently wick sweat; should fit comfortably snug
Base layer is for moisture control; your mid layer is for warmth

Read full article: How to Choose Base Layers

Fabrics

Synthetic: moisture-wicking, quick drying, durable, but can hold on to odor
Wool: moisture-wicking, odor-resistant, cooling in warm weather, can be less durable

Styles

Bikini: less rear coverage, thinner waistband, higher-cut leg
Briefs (women's): full-cut briefs offer more coverage in front and back; hipsters offer medium front coverage and back with higher rise
Briefs (men's): close fit and good support, but less thigh coverage
Boxer brief or boy shorts: snug fit, good coverage, longer cut extends down to the upper thigh
Boxers: looser fit, added coverage can prevent chafing but prone to bunching
Thongs: lightweight and quick-drying but provide the least coverage
Sports bras: compression and support during high-output activities like hiking and running

Read full article: How to Choose Hiking Underwear

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