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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 Double-Layer Underwear, Crewneck
L.L.Bean Men's Double-Layer Underwear, Crewneck
A gray thermal crewneck shirt with double-layer wool-blend and cotton construction, flatlock seams and shape-retaining cuffs.
(376)
$54.95 $54.95
SALE
What customers like:
Great comfort
Perfect fit
Exceptional warmth
Well made
Soft feel
$54.95 $54.95
SALE
Men's Double-Layer Underwear, Pants
L.L.Bean Men's Double-Layer Underwear, Pants
Men’s blue thermal underwear pants with a wool-blend outer layer, soft cotton lining, and flatlock seams.
(392)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's Cresta Midweight 250 Pants
L.L.Bean Men's Cresta Midweight 250 Pants
A versatile base layer made of dark black, itch-free merino wool that wicks sweat and resists odor.
(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 Cresta Wool Midweight 250 Crew Top
L.L.Bean Men's Cresta Wool Midweight 250 Crew Top
A black midweight merino wool base-layer crew top that wicks moisture, resists odor and retains warmth.
(489)
$99.95 $99.95
SALE
What customers like:
Great fit
Comfortable feel
Durable material
Soft fabric
Excellent warmth
$99.95 $99.95
SALE
Men's Cresta Midweight 250 Quarter-Zip Top
L.L.Bean Men's Cresta Midweight 250 Quarter-Zip Top
A black merino wool quarter-zip base layer with moisture-wicking warmth, flat-lock seams and thumbhole cuffs.
(375)
$120 $120
SALE
What customers like:
Keeps you warm
Excellent base layer
Comfort
Durability
Versatility
$120 $120
SALE
Men's L.L.Bean Heavyweight Base Layer Hoodie, Print
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Hoodie, Print
A green heavyweight synthetic base-layer hoodie with moisture-wicking, quick-drying fabric, odor-control finish and thumb holes.
(0)
$79.95 $79.95
SALE
$79.95 $79.95
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 black base-layer top in recycled polyester, moisture-wicking, quick-drying, with thumb holes and odor control.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Heavyweight Base Layer Crew Top, Print
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Crew Top, Print
A green heavyweight synthetic base-layer crew top with moisture-wicking, quick-drying fabric and thumbholes.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Heavyweight Base Layer Pant
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Pant
Black heavyweight base layer pants in recycled synthetic fabric wick moisture, dry quickly and resist odors.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
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 blue synthetic base-layer top with a quarter-zip, moisture-wicking warmth, quick-drying comfort, antimicrobial finish and thumbholes.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Heavyweight Baselayer Hoodie
L.L.Bean Men's L.L.Bean Heavyweight Baselayer Hoodie
A black synthetic baselayer hoodie with moisture-wicking, quick-drying fabric, odor control and thumbholes for outdoor warmth.
(0)
$79.95 $79.95
SALE
$79.95 $79.95
SALE
Men's L.L.Bean Heavyweight Base Layer Pant, Print
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Pant, Print
A green heavyweight base-layer pant in recycled polyester with moisture-wicking, quick-drying, odor-controlling fabric and tapered legs.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's Two-Layer Union Suit
L.L.Bean Men's Two-Layer Union Suit
A gray wool-blend union suit with supersoft two-layer warmth, flatlock seams and flexible rib-knit cuffs.
(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 Ultralight 150 Pants
L.L.Bean Men's Cresta Wool Ultralight 150 Pants
A pair of gray merino-wool base-layer pants with moisture-wicking warmth, flat-lock seams and gusseted mobility.
(142)
$89.95 $89.95
SALE
What customers like:
Stylish design
Lightweight feel
Durable material
Warm without bulk
Comfortable fit
$89.95 $89.95
SALE
Men's Cresta Ultralight 150 Crew Top
L.L.Bean Men's Cresta Ultralight 150 Crew Top
A gray merino wool base-layer crew top with thumbhole cuffs and flat-lock seams for versatile warmth.
(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 Base Layer, Hoodie
L.L.Bean Men's Cresta Wool Ultralight 150 Base Layer, Hoodie
A gray merino wool base-layer hoodie with moisture-wicking, odor-resistant warmth and a helmet-compatible hood.
(86)
$99.95 $99.95
SALE
What customers like:
Soft and fleecy interior
Ideal for winter sports
Warm and comfortable
Good fit
Fashionable and supportive
$99.95 $99.95
SALE
Men's Cresta Wool Ultralight 150 Pant, Stripe
L.L.Bean Men's Cresta Wool Ultralight 150 Pant, Stripe
Men’s blue merino wool base-layer pants with moisture-wicking warmth, flat-lock seams, and natural odor resistance.
(0)
$89.95 $64.99
SALE
$89.95 $64.99
SALE
Men's Cresta Ultralight 150 Hoodie, Stripe
L.L.Bean Men's Cresta Ultralight 150 Hoodie, Stripe
A blue merino wool base-layer hoodie with thumbhole cuffs, balaclava hood and moisture-wicking warmth.
(0)
$99.95 $74.99
SALE
$99.95 $74.99
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 black synthetic base-layer crew top with moisture-wicking stretch fabric, raglan sleeves and thumbholes for comfort.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's L.L.Bean Midweight Base Layer Pants
L.L.Bean Men's L.L.Bean Midweight Base Layer Pants
Green midweight base-layer pants in recycled polyester blend, wicking moisture and resisting odor with comfortable stretch.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's L.L.Bean Synthetic Silk Base Layer Pants
L.L.Bean Men's L.L.Bean Synthetic Silk Base Layer Pants
A lightweight brown synthetic-polyester baselayer providing smooth, close-fitting warmth without bulk.
(0)
$44.95 $44.95
SALE
$44.95 $44.95
SALE
Men's Cresta Wool Ultralight 150 Turtleneck
L.L.Bean Men's Cresta Wool Ultralight 150 Turtleneck
A gray merino wool mock turtleneck base layer with moisture-wicking, odor-resistant warmth and thumbhole cuffs.
(0)
$99.95 $84.99
SALE
$99.95 $84.99
SALE
Men's Silk Underwear, Pants
L.L.Bean Men's Silk Underwear, Pants
A strong, lightweight black silk base layer offering warmth and comfort without added bulk.
(486)
$54.95 $39.99
SALE
What customers like:
Great fit
Quality
Warmth
Comfortable
Versatile for weather
$54.95 $39.99
SALE
Men's Cresta Ultralight 150 Crew Top, Stripe
L.L.Bean Men's Cresta Ultralight 150 Crew Top, Stripe
A lightweight blue striped men's base-layer crew top in itch-free 100% merino wool with thumbhole cuffs.
(75)
$89.95 $75.99
SALE
$89.95 $75.99
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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