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Outdoor Base Layers

Find outdoor base layers to start your layering system, with styles to complement your outdoor wardrobe. Compare fit, sizing and product details as you browse to choose pieces that work with the layers you already own.

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Men's Two-Layer Union Suit
L.L.Bean Men's Two-Layer Union Suit
A supersoft, roomy red union suit with a wool blend for warmth and itch-free cotton interior.
(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 midweight merino wool crew top in saddle heather that wicks sweat, resists odor, and keeps you warm.
(489)
$99.95 $84.99
SALE
What customers like:
Perfect fit
Soft and comfortable
Durable fabric
Available in big and tall sizes
Great warmth
$99.95 $84.99
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, wicking sweat and resisting odor in saddle heather.
(439)
$99.95 $84.99
SALE
What customers like:
Great color
Versatile use
Soft and lightweight
Excellent warmth
Comfortable fit
$99.95 $84.99
SALE
Men's Silk Underwear, Crewneck
L.L.Bean Men's Silk Underwear, Crewneck
A lightweight black silk crewneck providing strong, comfortable warmth as a perfect base layer.
(410)
$54.95 $54.95
SALE
What customers like:
Durable
Comfortable
Warm
Great for travel
Feels like real silk
$54.95 $54.95
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
Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
L.L.Bean Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
A high-rise, slim-leg base layer made of itch-free merino wool in eggplant heather.
(390)
$99.95 $84.99
SALE
What customers like:
Great fit
Perfect weight
Warmth
Non-itchy
Comfortable fabric
$99.95 $84.99
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 midweight merino wool base layer in saddle heather, featuring a quarter-zip and thumbhole cuffs.
(375)
$120 $99.99
SALE
What customers like:
Convenience
Keeps you warm
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 form-fitting merino wool crew top in carbon navy that wicks sweat, resists odor, and keeps you warm.
(364)
$99.95 $84.99
SALE
What customers like:
Perfect base layer
Breathability
Warmth
Softness
Regulates body temperature
$99.95 $84.99
SALE
Women's Cresta Midweight 250 T-Zip Top
L.L.Bean Women's Cresta Midweight 250 T-Zip Top
An eggplant heather merino wool base layer that wicks sweat, resists odor, and keeps you warm.
(203)
$120 $99.99
SALE
What customers like:
Good quality
Warmth
True to size
Versatile
Comfortable
$120 $99.99
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
Women's Cresta Ultralight 150 Crew Top
L.L.Bean Women's Cresta Ultralight 150 Crew Top
A lightweight, alloy gray crew top made from 100% merino wool, perfect as a warm base layer.
(147)
$89.95 $89.95
SALE
What customers like:
Not itchy
Lightweight
Versatile
Warm
Comfortable
$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 from 100% merino wool, offering warmth and odor resistance in alloy gray.
(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, Crew
L.L.Bean Women's L.L.Bean Simple Soft Base Layer, Crew
A lightweight, moisture-wicking black base layer crewneck made from 94% polyester and 6% spandex.
(127)
$54.95 $54.95
SALE
What customers like:
Great fit
Smooth fabric
Softness
Dino style
Material
$54.95 $54.95
SALE
Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg
L.L.Bean Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg
A high-rise, slim-leg base layer made of 100% merino wool, providing warmth and comfort in alloy gray.
(119)
$89.95 $89.95
SALE
$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
An ultralight, form-fitting Merino wool hoodie that wicks moisture, resists odors, and features thumbhole cuffs.
(103)
$99.95 $84.99
SALE
What customers like:
High-quality material
Perfect fit
Easy to care for
Lightweight design
Great color combination
$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 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 synthetic base layer pant in faded sage heather, perfect for everyday warmth.
(86)
$54.95 $54.95
SALE
What customers like:
Great for layering
Provides warmth
Lightweight feel
$54.95 $54.95
SALE
Men's Cresta Ultralight 150 Crew Top, Stripe
L.L.Bean Men's Cresta Ultralight 150 Crew Top, Stripe
A remarkably soft and warm striped crew top made of 100% merino wool with thumbhole cuffs.
(75)
$89.95 $75.99
SALE
$89.95 $75.99
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
Women's Cresta Ultralight 150 Turtleneck, Stripe
L.L.Bean Women's Cresta Ultralight 150 Turtleneck, Stripe
An itch-free 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 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
Women's Cresta Ultralight 150 Hoodie, Stripe
L.L.Bean Women's Cresta Ultralight 150 Hoodie, Stripe
An itch-free 100% merino wool hoodie that wicks moisture, resists odors, and fits comfortably under helmets.
(0)
$99.95 $84.99
SALE
$99.95 $84.99
SALE

Outdoor Base Layers

Outdoor Base Layers are a good place to begin when putting together an outdoor wardrobe that feels like your own. Choosing among them starts with the details you know best: how you like your clothing to fit, which shapes you reach for most often, and what you already have in your closet. Think about your preferred sleeve length, neckline and overall coverage, then look closely at each item’s description and size chart. A familiar size is a useful starting point, but measurements offer a better basis for comparison than the size label alone. If you’re choosing tops and bottoms, consider each piece separately rather than assuming the same size will be right for both. The goal is a thoughtful selection, with attention to the little preferences that make something a welcome part of your wardrobe.

When comparing base layers, picture the whole outfit rather than a single piece on its own. Consider where a neckline will sit beneath another shirt, whether a hem is the length you prefer, and how the proportions work with the clothing you plan to wear over it. An item you already enjoy wearing can be a helpful reference: check its measurements and note what you like about the cut before making your choice. Read the individual fabric and care information, too, especially if you have particular preferences about how clothing feels or how you look after it. These details deserve as much attention as color or style. Coordinating pieces can give your wardrobe a consistent look, while choosing tops and bottoms individually leaves room for different sizing needs and personal tastes.

Base layers can also make a thoughtful gift for someone who enjoys being outside, whether that person is a longtime outdoor companion or a family member discovering the pleasure of spending more time outdoors. Clothing worn as a first layer is a personal choice, so a little familiarity goes a long way. Their usual size, favorite neckline and preference for a closer or roomier fit are more useful clues than guessing what they might like. Take your cue from the pieces they wear repeatedly—the neatly folded favorites that rarely stay in the drawer for long. For your own wardrobe or someone else’s, choosing Outdoor Base Layers needn’t mean replacing everything at once. Start with what’s missing, pay attention to individual product details, and choose pieces that reflect the person who will wear them.

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