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Men's Thermal Base Layers

Find men's thermal base layers to build your outfit from the first layer up. As you browse the selection, compare each item's fit and sizing with your other layers in mind, and check individual product details for fabric and care information.

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Men's L.L.Bean Heavyweight Base Layer Pant
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Pant
A heavyweight base layer pant in midnight black, made from recycled polyester with moisture-wicking properties.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's Two-Layer River Driver's Shirt®, Traditional Fit Henley
L.L.Bean Men's Two-Layer River Driver's Shirt®, Traditional Fit Henley
A blue wool-blend Henley with dual-layer thermal construction for superior warmth and comfort.
(6,147)
$79.95 $79.95
SALE
What customers like:
Exceptional warmth and comfort
Versatile style for colder weather
Fits true to size and roomy
Durable and well made
Soft, high-quality fabric
$79.95 $79.95
SALE
Men's Signature Waffle Crew
L.L.Bean Men's Signature Waffle Crew
A slim-fitting red crewneck pullover made from breathable, comfortable 100% waffle-knit cotton.
(692)
$89 $74.99
SALE
$89 $74.99
SALE
Men's Two-Layer Union Suit
L.L.Bean Men's Two-Layer Union Suit
A supersoft, charcoal union suit with a wool blend for warmth and a roomy fit for comfort.
(541)
$99.95 $99.95
SALE
What customers like:
Functional
Fits well
Well-made
Warmth
Comfortable
$99.95 $99.95
SALE
Men's Cresta Wool Midweight 250 Crew Top
L.L.Bean Men's Cresta Wool Midweight 250 Crew Top
A versatile merino wool base layer in carbon navy, offering warmth, odor resistance, and thumbhole cuffs.
(489)
$99.95 $99.95
SALE
What customers like:
Durable fabric
Comfort
Warmth
Softness
Good fit
$99.95 $99.95
SALE
Men's Silk Underwear, Pants
L.L.Bean Men's Silk Underwear, Pants
A lightweight, solid red silk base layer pant offering warmth and comfort without bulk.
(486)
$54.95 $45.99
SALE
What customers like:
Provides warmth
Well made and sturdy
Prevents chafing
Comfortable fit
Lightweight and thin
$54.95 $45.99
SALE
Men's Cresta Midweight 250 Pants
L.L.Bean Men's Cresta Midweight 250 Pants
A versatile base layer made of itch-free merino wool, providing warmth and odor resistance in carbon navy.
(439)
$99.95 $99.95
SALE
What customers like:
Odor resistant
Great color
Versatile use
Excellent warmth
Comfortable fit
$99.95 $99.95
SALE
Men's Silk Underwear, Crewneck
L.L.Bean Men's Silk Underwear, Crewneck
A lightweight red silk crewneck base layer offering strong comfort and warmth without bulk.
(410)
$54.95 $45.99
SALE
What customers like:
Fast drying
Provides warmth
Feels like real silk
Travel friendly
Comfortable fit
$54.95 $45.99
SALE
Men's Double-Layer Underwear, Pants
L.L.Bean Men's Double-Layer Underwear, Pants
A snug-fit, charcoal heather thermal pant with a durable wool blend exterior and soft cotton interior.
(392)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's Double-Layer Underwear, Crewneck
L.L.Bean Men's Double-Layer Underwear, Crewneck
A dark indigo, double-layered thermal shirt with a soft cotton interior and durable wool blend exterior.
(376)
$54.95 $54.95
SALE
What customers like:
Incredibly cozy
Perfect fit
Exceptional warmth
High comfort
Well made
$54.95 $54.95
SALE
Men's Cresta Midweight 250 Quarter-Zip Top
L.L.Bean Men's Cresta Midweight 250 Quarter-Zip Top
A versatile dark black merino wool quarter-zip top that wicks sweat, resists odor, and keeps you warm.
(375)
$120 $120
SALE
What customers like:
Keeps you warm
Excellent base layer
Comfort
Durability
Versatility
$120 $120
SALE
Men's Cresta Ultralight 150 Crew Top
L.L.Bean Men's Cresta Ultralight 150 Crew Top
An alloy gray, extra-large base layer made of 100% merino wool, offering warmth and comfort year-round.
(157)
$89.95 $89.95
SALE
What customers like:
Soft material
Warmth
Good fit
Comfortable
Versatility
$89.95 $89.95
SALE
Men's Cresta Wool Ultralight 150 Pants
L.L.Bean Men's Cresta Wool Ultralight 150 Pants
An ultralight base layer made of 100% merino wool, perfect for cool-weather sports and odor-resistant.
(142)
$89.95 $89.95
SALE
What customers like:
Lightweight
Warm without being bulky
Stylish
Durable
Comfortable
$89.95 $89.95
SALE
Men's Cresta Wool Ultralight 150 Base Layer, Hoodie
L.L.Bean Men's Cresta Wool Ultralight 150 Base Layer, Hoodie
A form-fitting gray hoodie made of 100% Merino wool, perfect for warmth and moisture-wicking comfort.
(86)
$99.95 $99.95
SALE
What customers like:
Warm and substantial
Soft and comfortable
Ideal for winter sports
Good fit
Fashionable design
$99.95 $99.95
SALE
Men's L.L.Bean Simple Soft Base Layer, Pants
L.L.Bean Men's L.L.Bean Simple Soft Base Layer, Pants
A lightweight, moisture-wicking base layer pant in dark black heather, made from a polyester-spandex blend.
(86)
$54.95 $54.95
SALE
What customers like:
Ideal for layering
Provides warmth
Lightweight feel
$54.95 $54.95
SALE
Men's Cresta Wool Ultralight 150 Turtleneck
L.L.Bean Men's Cresta Wool Ultralight 150 Turtleneck
An alloy gray, 100% merino wool turtleneck that wicks moisture, resists odors, and features thumbhole cuffs.
(0)
$99.95 $84.99
SALE
$99.95 $84.99
SALE
Men's L.L.Bean Heavyweight Base Layer Crew Top
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Crew Top
A heavyweight base layer crew top in midnight black, made from recycled polyester with moisture-wicking properties.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's Cresta Ultralight 150 Hoodie, Stripe
L.L.Bean Men's Cresta Ultralight 150 Hoodie, Stripe
A form-fitting, 100% merino wool hoodie in regatta blue, perfect as a base layer for winter sports.
(0)
$99.95 $84.99
SALE
$99.95 $84.99
SALE
Men's L.L.Bean Midweight Base Layer Crew Top
L.L.Bean Men's L.L.Bean Midweight Base Layer Crew Top
A midweight base layer crew top in carbon navy, made from recycled polyester for warmth and moisture-wicking.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's L.L.Bean Simple Soft Base Layer, Crew
L.L.Bean Men's L.L.Bean Simple Soft Base Layer, Crew
A lightweight, dark black heather crewneck base layer made from moisture-wicking, quick-drying synthetic fabric.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's Cresta Wool Ultralight 150 Pant, Stripe
L.L.Bean Men's Cresta Wool Ultralight 150 Pant, Stripe
A slim-leg base layer pant made of itch-free 100% merino wool, available in regatta blue and glacier blue.
(0)
$89.95 $75.99
SALE
$89.95 $75.99
SALE
Men's L.L.Bean Heavyweight Baselayer Hoodie
L.L.Bean Men's L.L.Bean Heavyweight Baselayer Hoodie
A midnight black heavyweight baselayer hoodie made from recycled polyester blend, featuring moisture-wicking and anti-microbial properties.
(0)
$79.95 $79.95
SALE
$79.95 $79.95
SALE
Men's L.L.Bean Midweight Base Layer Crew Top, 1/4 Zip
L.L.Bean Men's L.L.Bean Midweight Base Layer Crew Top, 1/4 Zip
A midweight, moisture-wicking base layer with recycled polyester, thumb holes, and anti-microbial finish for outdoor comfort.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Midweight Base Layer Pants
L.L.Bean Men's L.L.Bean Midweight Base Layer Pants
A versatile, moisture-wicking midweight base layer made from recycled polyester, offering warmth and odor resistance.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE

Men's Thermal Base Layers

Men's Thermal Base Layers are the starting point for a thoughtfully layered wardrobe, with choices that come down to personal preference as much as size. Some men like a close fit beneath their usual clothes; others prefer a little more room. As you browse, consider how each option fits into what you already own, from the shirts you reach for most often to your favorite outer layers. A familiar neckline, the right sleeve length and proportions that suit your frame can help narrow the selection. There’s something satisfying about opening a drawer and finding the pieces you like wearing together, without having to rethink the whole outfit. Choosing base layers with your existing wardrobe in mind keeps that decision simple and personal.

The details are worth comparing, especially when two thermal base layers look similar at first glance. Look at the listed measurements and fit descriptions rather than relying on your usual size alone, since a close-fitting style and a more relaxed cut can feel quite different in the same size. For tops, consider the length through the body and sleeves, along with how you like the neckline to sit beneath another shirt. For bottoms, waist sizing, inseam and the shape through the leg are useful points of comparison. Product photos can offer a sense of the silhouette, while individual descriptions provide the details that aren’t obvious on a screen. Care instructions deserve a look, too: choosing pieces that fit your regular laundry routine is a practical consideration that’s easy to overlook when you’re focused on fit and appearance.

Thermal base layers can also make a thoughtful gift for someone who appreciates useful additions to his wardrobe. The best starting point is what he already likes: a particular fit, a familiar color or a simple style he returns to again and again. Checking the size of a well-loved piece can be more helpful than guessing, though it’s still worth comparing that information with the sizing provided for your selection. Whether you’re choosing a gift or updating your own drawer, there’s no need to replace everything at once. A top or pair of bottoms that complements what’s already there can be a welcome addition. Explore Men's Thermal Base Layers with those everyday preferences in mind, and choose the pieces that feel like a natural part of getting dressed.

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