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Thermal Base Layers for Cold Weather

Find thermal base layers for cold weather to start your layering system. Browse the selection and compare each item’s fit, fabric and care details to choose base layers that suit your preferences and fit beneath your other clothing.

Men's Cresta Wool Midweight 250 Crew Top
L.L.Bean Men's Cresta Wool Midweight 250 Crew Top
A blue midweight merino wool base-layer top that wicks moisture, resists odor and retains 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 100% merino wool that wicks sweat, resists odor, and keeps you warm.
(439)
$99.95 $99.95
SALE
What customers like:
Soft material
Odor resistant
Versatile use
Great warmth
Comfortable fit
$99.95 $99.95
SALE
Men's Double-Layer Underwear, Pants
L.L.Bean Men's Double-Layer Underwear, Pants
A gray men's thermal base-layer pant with wool-blend exterior, soft cotton lining, and nonchafing flatlock seams.
(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 with high-rise, slim-leg styling, flat-lock seams, and natural warmth.
(390)
$99.95 $99.95
SALE
What customers like:
Great fit
Perfect base layer
Warmth
Non-itchy
Comfortable fabric
$99.95 $99.95
SALE
Men's Double-Layer Underwear, Crewneck
L.L.Bean Men's Double-Layer Underwear, Crewneck
A gray men's thermal crewneck with warm two-layer construction, merino wool blend, and soft cotton lining.
(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 blue merino-wool quarter-zip base layer that wicks sweat, resists odor and provides versatile warmth.
(375)
$120 $120
SALE
What customers like:
Keeps you warm
Excellent base layer
Comfort
Durability
Versatility
$120 $120
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 top with a quarter-zip, odor resistance, flat-lock seams, and thumbhole cuffs.
(203)
$120 $120
SALE
What customers like:
Well-made
Warmth
True to size
Versatile
Comfortable
$120 $120
SALE
Men's Cresta Wool Ultralight 150 Pants
L.L.Bean Men's Cresta Wool Ultralight 150 Pants
Gray merino wool base-layer pants with moisture-wicking warmth, odor resistance, flat-lock seams, and gusseted mobility.
(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 Ultralight 150 Turtleneck, Stripe
L.L.Bean Men's Cresta Ultralight 150 Turtleneck, Stripe
A lightweight blue merino-wool turtleneck with odor resistance, moisture-wicking comfort, and 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 black heavyweight base-layer pant with recycled polyester, moisture-wicking, quick-drying, odor-controlling fabric and ski-boot-friendly tapered legs.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
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 base-layer crew top with moisture-wicking, quick-drying fabric, odor control and thumb holes.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
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 base-layer crew top with recycled polyester, moisture-wicking fabric, thumbholes, and odor control.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's Cresta Ultralight 150 Turtleneck, Stripe
L.L.Bean Women's Cresta Ultralight 150 Turtleneck, Stripe
A striped, multicolor merino-wool turtleneck base layer with moisture-wicking, odor-resistant warmth and thumbhole cuffs.
(0)
$99.95 $84.99
SALE
$99.95 $84.99
SALE
Women's Cresta Ultralight 150 Hoodie, Stripe
L.L.Bean Women's Cresta Ultralight 150 Hoodie, Stripe
A striped 100% merino wool hoodie with moisture-wicking, odor-resistant warmth, thumbhole cuffs and a helmet-compatible hood.
(0)
$99.95 $74.99
SALE
$99.95 $74.99
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 synthetic base-layer pant with moisture-wicking, quick-drying fabric and odor control.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's L.L.Bean Heavyweight Base Layer Pants
L.L.Bean Women's L.L.Bean Heavyweight Base Layer Pants
A black heavyweight base-layer pant in recycled synthetic fabric, moisture-wicking, quick-drying and odor-controlling, with 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, flexible fit, and nonchafing flatlock seams.
(541)
$99.95 $99.95
SALE
What customers like:
Functional
Fits well
Well-made
Warmth
Comfortable
$99.95 $99.95
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, thumbholes and odor control.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's L.L.Bean Heayweight Base Layer Pant, Print
L.L.Bean Women's L.L.Bean Heayweight Base Layer Pant, Print
A blue synthetic base-layer pant with moisture-wicking, quick-drying fabric, odor control, and a warm tapered fit.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
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 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 $39.99
SALE
What customers like:
Fast drying
Provides warmth
Feels like real silk
Travel friendly
Comfortable fit
$54.95 $39.99
SALE
Women's Cresta Ultralight 150 Crew Top
L.L.Bean Women's Cresta Ultralight 150 Crew Top
A gray merino wool base-layer crew top with lightweight warmth, flat-lock seams, and thumbhole cuffs.
(147)
$89.95 $89.95
SALE
What customers like:
Not itchy
Lightweight
Versatile
Comfortable
Warm
$89.95 $89.95
SALE
Men's L.L.Bean Simple Soft Base Layer, Pants
L.L.Bean Men's L.L.Bean Simple Soft Base Layer, Pants
Black synthetic base layer pants with moisture-wicking, quick-drying fabric and a close-to-body fit for easy 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 Midweight Long Underwear, Top Print
L.L.Bean Kids' Wicked Warm Midweight Long Underwear, Top Print
A midweight kids’ base-layer top in printed polyester with thumbhole cuffs for warm, moisture-managing comfort.
(83)
$29.95 $29.95
SALE
What customers like:
Makes a great gift
Attractive design
Flattering cut
Affordable price
Good fit
$29.95 $29.95
SALE

Thermal Base Layers for Cold Weather

Thermal Base Layers for Cold Weather are a starting point for getting dressed when the temperature drops and an extra layer feels welcome. On mornings when there’s frost along the window and everyone is gathering coats by the door, it helps to have the first part of your outfit already figured out. Start your selection with the clothes you plan to wear over it: a close-fitting shirt leaves a different amount of room than a generous sweater, and the waistband of your usual pants matters when adding a layer underneath. Look at each item’s fit description and measurements rather than relying on your usual size alone. A base layer should fit into your wardrobe as thoughtfully as any other everyday essential, with a shape and feel you’ll be happy to reach for throughout the cold-weather season.

Choosing between thermal base layers often comes down to small, personal preferences. Consider whether you prefer a higher or lower neckline, where you like a top’s hem to fall, and how sleeve and leg lengths compare with clothing you already own. Product photographs can offer a useful first impression, but individual descriptions and size charts are the better place to check the details. If you’re choosing both a top and a bottom, assess their sizes separately; the right fit on one half doesn’t always mean the same size will work on the other. Think through the whole outfit, too, including where cuffs, waistbands and hems will meet. Those overlapping edges are easy to overlook while shopping, yet they can make a difference in how an outfit feels once you’re dressed. Check the care instructions before deciding, especially if you prefer pieces that fit into an established laundry routine.

Thermal base layers can also make a thoughtful gift for someone who appreciates practical additions to a cold-weather wardrobe. The most useful clues are often familiar ones: the neckline they tend to choose, the fit of their favorite shirts, or whether they like their layers tucked in. When possible, confirm measurements instead of guessing, and consider which part of their wardrobe could use an addition rather than assuming they need a complete set. For your own collection, take a quick look at what’s already in the drawer before choosing. Replacing a poorly fitting piece or adding a second option to the weekly rotation can be more useful than buying several at once. Whether you’re shopping for yourself or someone close to you, focus on the individual details that make getting dressed for cold weather feel a little more straightforward—and leave more time for enjoying the day together.

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