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Base Layers & Thermals

Find base layers and thermals to start your layered outfit, with first-layer essentials to suit your preferences. Compare individual styles for fit, sizing and care requirements to help choose the right pieces for your wardrobe.

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Men's Two-Layer Union Suit
L.L.Bean Men's Two-Layer Union Suit
A red two-layer wool-blend base layer with flatlock seams, rib-knit cuffs and flexible, itch-free 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 blue 100% merino wool base layer that wicks moisture, resists odor and provides versatile warmth.
(489)
$99.95 $99.95
SALE
What customers like:
Perfect fit
Soft and comfortable
Durable fabric
Available in big and tall sizes
Great warmth
$99.95 $99.95
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, wicking sweat and resisting odor in dark black.
(439)
$99.95 $99.95
SALE
What customers like:
Great color
Versatile use
Soft and lightweight
Excellent warmth
Comfortable fit
$99.95 $99.95
SALE
Men's Double-Layer Underwear, Pants
L.L.Bean Men's Double-Layer Underwear, Pants
A blue, double-layer thermal pant with soft cotton lining and durable merino wool-nylon blend exterior.
(392)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
L.L.Bean Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
A black merino wool base layer that wicks moisture, resists odors, and provides versatile warmth.
(390)
$99.95 $99.95
SALE
What customers like:
Great fit
High-quality fabric
Non-itchy material
Comfortable to wear
Excellent warmth
$99.95 $99.95
SALE
Men's Double-Layer Underwear, Crewneck
L.L.Bean Men's Double-Layer Underwear, Crewneck
A gray, two-layer thermal crewneck with soft cotton inside, wool-blend outer knit, and itch-free warmth.
(376)
$54.95 $54.95
SALE
What customers like:
Great fit
Very cozy
Exceptional warmth
Comfortable feel
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 brown 100% merino wool quarter-zip base layer naturally wicks moisture, resists odor and keeps warm.
(375)
$120 $99.99
SALE
What customers like:
Keeps you warm
Excellent base layer
Comfort
Durability
Versatility
$120 $99.99
SALE
Women's Cresta Midweight 250 Crew Top
L.L.Bean Women's Cresta Midweight 250 Crew Top
A dark black, form-fitting merino wool crew top that wicks sweat, resists odor, and keeps you warm.
(364)
$99.95 $99.95
SALE
What customers like:
Great fit
Breathable fabric
High quality
Perfect base layer
Excellent warmth
$99.95 $99.95
SALE
Women's Cresta Midweight 250 T-Zip Top
L.L.Bean Women's Cresta Midweight 250 T-Zip Top
A black merino wool base layer offering sweat-wicking warmth, odor resistance, and thumbhole cuffs.
(203)
$120 $120
SALE
What customers like:
Well-made
Warmth
True to size
Versatile
Comfortable
$120 $120
SALE
Women's Cresta Ultralight 150 Crew Top
L.L.Bean Women's Cresta Ultralight 150 Crew Top
A gray, lightweight 100% merino wool base layer with thumbhole cuffs, flat-lock seams, and all-season warmth.
(147)
$89.95 $89.95
SALE
What customers like:
Not itchy
Lightweight
Versatile
Comfortable
Warm
$89.95 $89.95
SALE
Men's Cresta Wool Ultralight 150 Pants
L.L.Bean Men's Cresta Wool Ultralight 150 Pants
A gray, lightweight 100% merino wool base layer with moisture-wicking warmth, odor resistance and flat-lock seams.
(142)
$89.95 $89.95
SALE
What customers like:
Lightweight
Warm without being bulky
Stylish
Durable
Comfortable
$89.95 $89.95
SALE
Women's L.L.Bean Simple Soft Base Layer, Pants
L.L.Bean Women's L.L.Bean Simple Soft Base Layer, Pants
A lightweight, moisture-wicking synthetic base layer pant in dark black, perfect for everyday warmth and layering.
(116)
$54.95 $54.95
SALE
What customers like:
Adds extra warmth
Lightweight
Very soft
Good fit
Comfortable
$54.95 $54.95
SALE
Women's Cresta Wool Ultralight 150 Base Layer, Hoodie
L.L.Bean Women's Cresta Wool Ultralight 150 Base Layer, Hoodie
A gray, itch-free Merino wool hooded base layer that wicks moisture, resists odors, and layers comfortably.
(103)
$99.95 $84.99
SALE
What customers like:
High-quality material
Easy to care for
Perfect under layer
Lightweight design
Comfortable fit
$99.95 $84.99
SALE
Men's Cresta Wool Ultralight 150 Base Layer, Hoodie
L.L.Bean Men's Cresta Wool Ultralight 150 Base Layer, Hoodie
A gray, form-fitting 100% Merino wool hoodie that wicks moisture, resists odors and layers under helmets.
(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 L.L.Bean Simple Soft Base Layer, Pants
L.L.Bean Men's L.L.Bean Simple Soft Base Layer, Pants
A green synthetic base layer pant with moisture-wicking, quick-drying fabric and a close-to-body fit for layering.
(86)
$54.95 $54.95
SALE
What customers like:
Great for layering
Provides warmth
Lightweight feel
$54.95 $54.95
SALE
Kids' Wicked Warm Long Underwear, Expedition-Weight Top
L.L.Bean Kids' Wicked Warm Long Underwear, Expedition-Weight Top
A pink, expedition-weight synthetic base layer top with lightweight fleece lining and four-way stretch for kids.
(79)
$39.95 $39.95
SALE
$39.95 $39.95
SALE
Men's Cresta Wool Ultralight 150 Turtleneck
L.L.Bean Men's Cresta Wool Ultralight 150 Turtleneck
A gray 100% merino wool base layer with a mock turtleneck, moisture-wicking warmth and thumbhole cuffs.
(0)
$99.95 $84.99
SALE
$99.95 $84.99
SALE
Women's L.L.Bean Heavyweight Base Layer Crew Top
L.L.Bean Women's L.L.Bean Heavyweight Base Layer Crew Top
A black heavyweight synthetic base layer with moisture-wicking, quick-drying fabric, odor control and thumbhole cuffs.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's LLB Simple Soft Base Layer Camisole
L.L.Bean Women's LLB Simple Soft Base Layer Camisole
A pink synthetic camisole with moisture-wicking, quick-drying, pill-resistant fabric for lightweight warmth and easy layering.
(0)
$39.95 $39.95
SALE
$39.95 $39.95
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 black heavyweight synthetic base layer with moisture-wicking, quick-drying fabric, odor control and thumbholes.
(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 midweight base layer in midnight black, made from recycled polyester for warmth and quick-drying comfort.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's L.L.Bean Heavyweight Base Layer Pant
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Pant
A black heavyweight synthetic base layer pant with moisture-wicking, quick-drying fabric and ski-boot-friendly tapered legs.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
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 midweight synthetic base layer with moisture-wicking, quick-drying stretch comfort, odor resistance and thumbhole cuffs.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE

Base Layers & Thermals

Base Layers & Thermals are a personal part of a wardrobe, and choosing them deserves the same attention you give to a favorite pair of jeans. Start with the sizes and silhouettes you already like, then take a closer look at each item’s fit description and measurements. Two pieces marked with the same size can have different proportions, so details such as sleeve length, inseam and where a waistband sits are worth comparing. Think about whether you prefer a closer cut or a little more room, rather than assuming one fit is right for everyone. A familiar neckline or a preferred waist height can help narrow the choices considerably. There’s satisfaction in opening a drawer and finding pieces that feel like your style, right down to the basics.

Building a selection of base layers and thermals doesn’t have to mean buying everything at once. You might be replacing a well-loved piece, filling a gap in your wardrobe or choosing a coordinated top and bottom. Consider what you already own before deciding what to add: a consistent color palette can make matching straightforward, while separate pieces give you room to choose different sizes or proportions for the top and bottom. Look closely at the individual descriptions and photos for details that matter to you, including neckline shape, cuffs and waistband design. Care instructions deserve a look, too, especially if you prefer a simple laundry routine. These small purchase considerations are easy to overlook on a product listing, but they can be more useful than choosing by appearance alone.

Base layers and thermals can also be a thoughtful gift for someone whose preferences you know well. The best starting point is often an ordinary detail: the size they reach for most, the colors neatly stacked in their drawer or the familiar piece they’ve been meaning to replace. Since fit is personal, it helps to confirm measurements rather than guess, particularly when choosing a top and bottom together. For a family member or close friend, following their established preferences can make the gift feel considered without making it complicated. Whether you’re shopping for yourself or someone else, take your time comparing the details of each option. A well-chosen addition begins with paying attention to the person who will wear it.

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